Mermaid McKenna

Mermaid McKenna I do mermaid appearances for events such as birthday parties in and around Exton, PA๐Ÿงœ๐Ÿผโ€โ™€๏ธ๐Ÿšโœจ

How cute is this seashell mirror my best friend got me for Christmas?! ๐Ÿ˜
12/22/2022

How cute is this seashell mirror my best friend got me for Christmas?! ๐Ÿ˜

Hello, Instagram! It's been a while.. I was so busy with finals and adopting a new cat, named Glitter! Because I got a n...
12/16/2022

Hello, Instagram! It's been a while.. I was so busy with finals and adopting a new cat, named Glitter! Because I got a new cat, I wanted to make today's about the cats of the sea... sea otters!! Sea otters are renowned for being adorable, just like cats. One of the many features that makes them so cute is their fluffy fur. This fluff is actually the most dense fur of any animal on Earth! Sea otters have an estimated 1 million hairs per square inch! Why? Because they have no blubber to keep them warm in those chilly waters of Alaska and California, where many sea otters reside. Sea otters are also special because they use tools, a trait once heralded as a sign of intelligence! (Side note: how do we define intelligence in animals? That's a hot topic in animal behaviors, with many scientists struggling to come to a consensus on the matter.) Another thing that makes sea otters adorable is their use of hand-holding to stay together when they sleep. Lastly, sea otters are considered keystone species (they're practically the epitome of the term). This means that they are the glue keeping their ecosystem together. Adorable and essential?! ๐Ÿฆฆ

Oceanography is my passion. It is the study of marine biology, chemistry, geology and physics. Today's   is about a topi...
12/02/2022

Oceanography is my passion. It is the study of marine biology, chemistry, geology and physics. Today's is about a topic of marine geology: hydrothermal vents. Found deep on the ocean floor, these vents are comparable to geysers that spew hot, hot water from the earth's crust. Hydrothermal vents are the result of seawater seeping down through fissures in the ocean crust. The cold seawater is heated by hot magma and comes back to the surface to form the vents. This water can reach 750ยฐF and it often carries minerals, giving the plumes a black appearance. This hot water fails to boil under such extreme pressures. That's because the v***r pressure cannot exceed the atmospheric pressure, in chemistry terms. :) Many organisms are found living on and around hydrothermal vents, as their metabolic processes rely on the minerals that come out of the vents. Such organisms can be seen pictured above. It's bewildering to think that life can exist in such a harsh environment... ๐Ÿ—ป๐Ÿ’จ

Time for another   !! Today's topic is bivalves. These are two-shelled creatures, from giant clams to beautiful scallops...
11/04/2022

Time for another !! Today's topic is bivalves. These are two-shelled creatures, from giant clams to beautiful scallops. Bivalves have gills to breathe and gather food. They are filter feeders. Many bivalves have a foot that they can use to move around and burrow in the sediment. Bivalves can also make their own shells using an organ called the mantle. The mantle secretes calcium carbonate, which is what shells are made of! Bivalves are great for sea life to have around because they filter the water and provide shelter. They are also found virtually everywhere underwater, including on hydrothermal vents!! Hydrothermal vents are an extreme pressure and heat environment, so this is... impressive! And magical :)

Happy Halloween!! ๐Ÿซง๐Ÿชธ๐Ÿงœ๐Ÿผโ€โ™€๏ธ๐Ÿš
10/31/2022

Happy Halloween!! ๐Ÿซง๐Ÿชธ๐Ÿงœ๐Ÿผโ€โ™€๏ธ๐Ÿš

For today's  , let's take a moment to learn about ocean productivity. ๐ŸŒŠ๐Ÿฆ โš›๏ธ "Ocean productivity" refers to the production...
10/28/2022

For today's , let's take a moment to learn about ocean productivity. ๐ŸŒŠ๐Ÿฆ โš›๏ธ "Ocean productivity" refers to the production of molecules by organisms in the water. Many of these molecules are the driving forces of life. For example, let's look at what phytoplankton does to contribute to ocean productivity. Phytoplankton are mostly microscopic organisms that undergo photosynthesis, but don't let their size fool you! It's estimated that around half of the air we breathe comes from these creatures! That's because phytoplankton takes CO2, a form of carbon unusable to us, and convert it into breathable oxygen and crucial organic carbon. Organic carbon is useful to all life, as it can be used to build essential molecules such as lipids, fats, proteins, amino acids, and carbohydrates. These are the very molecules life relies on! So what do phytoplankton need to do this job? Just like a house plant would get light, CO2, water, and nutrients from its caretaker, phytoplankton gets all of these ingredients in the ocean. The nutrients it needs include nitrogen and phosphorus. Nitrogen sometimes needs to be converted into a usable form for the phytoplankton to use. This is where bacteria come into play! Some bacteria take nitrogen in a form useless to phytoplankton, and convert it into a usable form so that the phytoplankton can go about its life, creating molecules for us to use. So, as you may have gathered, ocean productivity fuels life in the ocean and even on the land! And whenever we eat fish, we are reaping the benefits of ocean productivity, consuming the molecules that bacteria and phytoplankton worked so hard to build :) Pretty magical if you ask me!!

Guess what time it is? Time for another  !! ๐Ÿฆˆ Did you know that sharks have been around for 455 million years?! That's r...
10/21/2022

Guess what time it is? Time for another !! ๐Ÿฆˆ Did you know that sharks have been around for 455 million years?! That's right, even though sharks don't have bones (they instead have cartilage), they can still fossilize! As sharks age, they deposit calcium salts in their cartilage to strengthen it, and their teeth have enamel. Both calcium salts and enamel preserve quite nicely! Calcium salts are found in bones, so these give shark skeletons a more sturdy structure. That's why shark jaws look like bone! Sharks have a very unique anatomy. For one, they have special electroreceptor organs called the ampullae of Lorenzini. These electroreceptor organs can detect electromagnetic fields in the ocean, as well as temperature shifts. Electromagnetic fields, detected by the shark, are essentially just moving charge. Organisms, such as shark bait, produce electromagnetic fields when their body performs its usual functions, such as sending electricity through its muscles and neurons. Since this is considered moving charge, shark bait produces its own electromagnetic field, which the shark readily detects using its electroreceptor organs, the ampullae of Lorenzini. Despite having the ability to sense prey through electroreceptors, most sharks also have good vision! You wouldn't think they'd need it, but sharks can see well at night and they can see the ocean's colorful display during the day. No wonder they're considered apex predators! There's so much more to know about sharks, thanks to the outstanding research that has been done on them in recent years, but I'll leave you with this for now :) It's crazy to think of the amazing discoveries that can be made when we study the secrets beneath the waves.

Making business cards! & I'm feeling crafty๐Ÿ˜Œ Let's do this!
10/18/2022

Making business cards! & I'm feeling crafty๐Ÿ˜Œ Let's do this!

Just signed up to be at the Trunk or Treat in East Fallowfield Park on Friday, October 28th from 4:30-7pm!! Can't wait๐Ÿ˜
10/18/2022

Just signed up to be at the Trunk or Treat in East Fallowfield Park on Friday, October 28th from 4:30-7pm!! Can't wait๐Ÿ˜

Bring your trunks full and your best decorations for a fun night of Halloween. If event is canceled due to weather the email you use on sign up will be where the message is sent. Please review the available slots below and click on the button to sign up. Thank you!

Happy  ! Today, let's talk about tunicates :) Tunicates are invertebrates, meaning they lack a backbone. However, despit...
10/14/2022

Happy ! Today, let's talk about tunicates :) Tunicates are invertebrates, meaning they lack a backbone. However, despite their appearance, they are animals! Tunicates are commonly known as sea squirts because, when removed from the water, they contract and shoot out the water that was circulating throughout their body! Their digestive system is "U-shaped," (although I think it looks more like a J), carrying water in, filtering it, and pushing it back out. They are also filter feeders, which means that they feed on mainly plankton. Tunicates actually have a well-developed heart and circulatory system, and they do have blood. Their nervous system, however, is primitive. Sometimes, amphipods (mostly small shrimp-like creatures), can be found living inside of tunicates, like the one in the picture! I love amphipods, just a side note :) They're so adorable. And magical!

For today's   let's talk about why the ocean is blue! ๐ŸŒŠ The electromagnetic spectrum is the range of all possible freque...
10/07/2022

For today's let's talk about why the ocean is blue! ๐ŸŒŠ The electromagnetic spectrum is the range of all possible frequencies of light. It ranges from radio waves to gamma rays, and includes visible light. The sun shines down on the ocean with "white light." That is, every color in the visible spectrum gets sent down to the ocean! Water, because of its chemistry, ABSORBS reddish light. That leaves bluish colors to become reflected. This reflection of blue light is what we see as a blue ocean. So, why is the ocean sometimes green? Microscopic algae has a different way of reflecting light. It can reflect green and absorb the other colors for use in photosynthesis! Finally, you may be wondering, then what is light? Einstein pondered the same question after the seeing the work of other famous chemists and physicists. Finally, it was concluded that light is a wave (called electromagnetic radiation) and a particle (called a photon). How can it be both? Become a quantum scientist to find out :) โš›๏ธ

Happy   !! Let's talk about sea stars๐Ÿคฉ Did you know that starfish have no brain or blood? Instead of blood, seawater is ...
09/30/2022

Happy !! Let's talk about sea stars๐Ÿคฉ Did you know that starfish have no brain or blood? Instead of blood, seawater is pumped throughout their body. Seawater provides key nutrients that allow the starfish's organs to function properly. Sea stars move with hundreds of hydraulic feet, which fill with water at random and empty out to move the starfish forward. You may have also heard that starfish can regenerate arms... this is true!! The lost limb can actually grow into a full starfish, genetically identical to the original! Sounds like magic to me :)

More pictures from the photoshoot! My little brother  is so talented :)
09/26/2022

More pictures from the photoshoot! My little brother is so talented :)

Goodie bags!! ๐Ÿ›
09/26/2022

Goodie bags!! ๐Ÿ›

First picture I'm posting in my   !!๐Ÿงœ๐Ÿผโ€โ™€๏ธโœจ If you HAD to pick a favorite sea animal, what would it be? Mine would be orc...
09/25/2022

First picture I'm posting in my !!๐Ÿงœ๐Ÿผโ€โ™€๏ธโœจ If you HAD to pick a favorite sea animal, what would it be? Mine would be orcas because they always show up in my dreams :) How 'bout you?

Making my little brother  take my picture in the new tail! Can't wait to see how they turn out :)
09/23/2022

Making my little brother take my picture in the new tail! Can't wait to see how they turn out :)

Today's   is all about shipwrecks! It is estimated there are more than 3 million shipwrecks on the ocean floor. These si...
09/16/2022

Today's is all about shipwrecks! It is estimated there are more than 3 million shipwrecks on the ocean floor. These sites can serve as artificial reefs in the right conditions, which support commercially important species. Since corals need a hard substrate to land on in order to establish themselves, it's possible for them to grow on the surfaces of sunken ships. Corals tend to lay the foundation for entire ecosystems to exist! That's why so many cool fish, including sharks, can be found at some shipwreck sites. However, shipwrecks aren't always beneficial to the environment. In some cases, a ship may contain toxic chemicals on board that leach into the water. Also, microorganisms can sometimes take up toxic materials from these shipwrecks, such as heavy metals, and transfer them up the food chain. Very interesting to think about! I'd love to visit one of these sites someday.

Today's   is all about horseshoe crabs! Horseshoe crabs have been around for 445 million years, making them one of the o...
09/03/2022

Today's is all about horseshoe crabs!

Horseshoe crabs have been around for 445 million years, making them one of the oldest species on Earth! Because of this, many call them "living fossils," though an individual horseshoe crab can only live for about 20 years. Fossil evidence shows horseshoe crab anatomy has remained relatively the same for millions of years. Horseshoe crabs are actually not crabs at all, as they're more closely related to arachnids (spiders) than actual crabs or lobsters. Horseshoe crabs are also known for their baby blue blood. Their blood is used widely used in the medical field for its ability to coagulate around bacteria, indicating contamination in small samples. Horseshoe crabs lay eggs, and one female can lay up to 88,000 eggs in a year! Horseshoe crabs tend to congregate in large numbers on the shores of Delaware beaches for this purpose. There are SO many interesting things to know about horseshoe crabs. What a magical creature!

Ready for another   ? ๐Ÿ™๐Ÿ’œDid you know octopuses have blue blood, three hearts, and a donut-shaped brain?! As if it couldn...
08/26/2022

Ready for another ?
๐Ÿ™๐Ÿ’œ
Did you know octopuses have blue blood, three hearts, and a donut-shaped brain?! As if it couldn't get any weirder, octopuses are also know for their intelligence. They've demonstrated an ability to solve puzzles, escape aquariums, learn and remember information, and use tools. They can get pretty creative when it comes to hiding from predators, too! Many octopuses have special cells called chromatophores --these are responsible for the octopus' change in color. This interesting system inspires advancements in things like eReaders and Jumbotron displays! One more thing: octopuses can pick up on chemical information like smell and taste, as well as touch with every sucker on their arm. In fact, each sucker can have up to 10,000 neurons to help take in this information! ...Pretty magical if you ask me :)

My mermaid tail isn't coming for a whole 'nother month (I can't wait that long)!! So here are some things I'm doing to k...
08/20/2022

My mermaid tail isn't coming for a whole 'nother month (I can't wait that long)!! So here are some things I'm doing to keep busy in the meantime๐Ÿ˜…

Ordered my first mermaid tail!! I can't wait for it to come in the mail๐Ÿ˜ I think it's so pretty๐Ÿ’œ It's a fabric tail, but...
08/20/2022

Ordered my first mermaid tail!! I can't wait for it to come in the mail๐Ÿ˜ I think it's so pretty๐Ÿ’œ It's a fabric tail, but perfect for a beginner, right? :)

Today is   !! Did you know that corals have algae and other microscopic organisms living in their tissues? These are cal...
08/20/2022

Today is !!

Did you know that corals have algae and other microscopic organisms living in their tissues? These are called zooxanthellae and they help provide the corals with energy and other nutrients! Corals can only grow where their zooxanthellae can survive. A coral itself is made up of tiny animals called polyps, all living together in a colony. Pretty magical, right?

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