How large can a stone grow inside your body? How big can a kidney stone get? Are gallstones even bigger? In this video, we answer these questions and show off some of the largest stones in our collection. #animals #science #learnontiktok This video was made in collaboration with the International Museum of Surgical Science in Chicago, Illinois. Their museum is open to the public daily.

If you place a squirrel skull under a UV black light, something unusual happens. It glows pink! Interestingly, this is only the case for one specific species of squirrel - the eastern fox squirrel. The bones of eastern fox squirrels glow pink under a UV light. In this video, we explain why. #animals #science #learnontiktok Specimen use made possible by the University of Michigan Museum of Zoology

What’s inside a kidney? And how do kidneys work? In this video, we learn how kidneys clean our blood, while finding out what’s inside the central area and outer areas of a kidney. #animals #science #LearnOnTikTok A scientific sheep research specimen was used in this video.

What mammal has the most teeth? In this video, we go over the amount of teeth that different animals have. We note the number of teeth in rats, beavers, lions, bears, anteaters, chimpanzees, opossums, and dolphins. #animals #science #learnontiktok Specimen use made possible by the University of Michigan Museum of Zoology

Goodbye - Thank you for everything. I’ve had a wonderful time on this platform over the past few years. I will truly miss sharing videos with you. Hopefully, I’ll see you soon. #animals #science #learnontiktok

People often confuse pufferfish with other types of fish. Many fish can inflate their bodies to ward off predators. In this video we learn that pufferfish do not have spines. If it has large spines, it’s likely a porcupinefish. #animals #science #learnontiktok Specimen use made possible by the University of Michigan Museum of Zoology.

What’s inside a wasp nest? In this video, we open up an extremely large abandoned wasp nest to find out. #animals #science #learnontiktok

This is a bug that people unknowingly eat nearly everyday. It’s an insect called a “cochineal” and is often used in food as a red dye. You might find it in the ingredients of candy - like Nerds Gummy Clusters - food, and even cosmetics under the name “carmine color”. #animals #science #learnontiktok

This is a squirrel’s “private bone”. These bones are actually called baculums. Which animal has the largest baculum? Let’s find out… #animals #science #learnontiktok Specimen use made possible by the University of Michigan Museum of Zoology

Caterpillars have mostly fake legs - but where are they? At the front of their bodies they have 6 “true legs” and at the back they have 10 fake legs, also known as “prolegs”. #animals #science #learnontiktok