Everything You Didn't Know About Ocean Animals

Summary

This video explores the fascinating world of sea creatures, revealing surprising facts about their movement and anatomy. Scallops, once thought to be blind, actually have up to 200 eyes and can swim by jetting water out of their shells. Mussels were historically used to make shiny buttons, while sea urchins move using tiny tube feet and have sharp teeth. Sand dollars, often mistaken for rocks, are animals with grooves on their underside that help them catch food. The video ends by teasing the discovery of starfish teeth, leaving viewers curious for more!

Takeaways

• 😀 Scallops are not blind; they have up to 200 eyes on the outer edge of their shells that help them sense their surroundings.
• 😀 Scallops can move by opening their shells to suck water in and then expel it, propelling themselves in the opposite direction.
• 😀 Mussels were historically used to make shiny buttons in the 1900s by punching tiny holes in them and using the pieces.
• 😀 Sea urchins have spines that attach to bumps on their shells, and they move using tiny tube feet that protrude through small holes.
• 😀 The tube feet of sea urchins help them move across the ocean floor, similar to how starfish move.
• 😀 Sea urchins also have mouths with teeth underneath their shells, which they use to feed.
• 😀 Sand dollars are not rocks, but animals that move around using tiny spines on their surfaces.
• 😀 Sand dollars have grooves on their undersides lined with tiny tubes that capture food particles and direct them toward their mouth.
• 😀 The mouth of a sand dollar is located in a small hole on its underside, where food is consumed.
• 😀 Sand dollars have five large teeth that they use to eat, which are found inside their mouths.

Q & A

Do scallops have eyes?

Yes, scallops have up to 200 eyes, located along the outer edge of their shells. These blue circles help them detect light and motion.

How do scallops move?

Scallops can move by opening and closing their shells, sucking in water, and shooting it out in the opposite direction, which propels them through the water.

Why do some mussels have holes in them?

Mussels with holes were often harvested in the 1900s to make buttons. People punched tiny holes in mussels and used the discarded pieces for crafting shiny buttons.

How do sea urchins move?

Sea urchins move using tube feet that are attached to tiny holes on their shells. These feet help them scoot across the sea floor, much like starfish.

What is the function of the small holes on a sea urchin's shell?

The small holes on a sea urchin's shell are connected to tiny tube feet, which help the sea urchin move and interact with its environment.

What kind of teeth do sea urchins have?

Sea urchins have a specialized mouth with teeth known as 'Aristotle's lantern,' which they use to scrape algae and other food sources off rocks.

Are sand dollars animals or rocks?

Sand dollars are animals. Despite their rock-like appearance, they are actually echinoderms, closely related to sea urchins and starfish.

How do sand dollars eat?

Sand dollars eat by using tiny tube feet along grooves on their underside to collect food particles like plankton or algae, which are then passed to their mouth.

What is the structure found inside a sand dollar?

Inside a sand dollar, there are five triangular-shaped teeth, which the sand dollar uses to eat. These teeth are used to grind up food as it passes through their mouth.

Do starfish have teeth?

Yes, starfish have a specialized mouth and a form of 'teeth' that help them eat by prying open shells and consuming the soft tissue of their prey, like clams.