Shark
Anatomy
behaviors
senses
extra because its fun
100
Pups are born dark with yellow stripes and spots like a zebra, but adults turn tan or yellowish-brown with dark spots. Their caudal fin can be nearly as long as the rest of their body.
A Zebra Shark
100
What are sharks skeletons made of?
Cartilage
100
What time of day do sharks favorite activities occur?
During twilight and dark hours
100
Special jelly-filled pores on their snouts, called ampullae of Lorenzini, allow them to detect the weak ____ ____ emitted by other animal's muscle movements or even heart beat.
Electric fields
100
What are baby sharks called?
Pups
200
What is the largest species of shark?
a Whale shark
200
True or false: All sharks need to swim to be able to breathe.
False.
Sharks like the nurse shark uses a method called buccal pumping
200
Remora, cleaner wrasse, and pilotfish often travel with sharks, what kind of relationships do they have with sharks?
Symbiotic
200
Sharks inner ears are attuned to frequencies between 20 and 300 Hz, making them finely tuned to pick up what sorts or sounds?
Splashes, heartbeats, or the movement of prey.
200
Are sharks older than dinosaurs?
Yes! They have been swimming the waters for over 400 million years.
Fossils of ancient sharks predate the first trees and vertebrates on land.
300
Native to shallow coral reefs in Australia and New Guinea, this shark has developed the remarkable ability to “walk” using its pectoral and pelvic fins.
The Epaulette Shark
300
Depending on the species, how many teeth can a shark go through in a lifetime?
20,000 to 30,000 teeth.
Sharks have many rows of teeth and they always grow back to ensure they always have a razor sharp defense.
300
Why do humans get mistaken for prey by sharks?
Due to the sight and sound
Often times, recorded shark attacks are due to hooked or snared sharks or spearfisherman handling injured fish.
300
A specialized system of fluid-filled canals running down their sides—called the lateral line—allows them to sense what?
Pressure changes and vibrations in the water
300
What would happen to the ocean without the existence of sharks?
ecosystems can collapse, leading to overgrazing of coral reefs and imbalance among fish species. Healthy shark populations are indicators of thriving oceans.
400
What shark has the ability to see 360 degrees due to their eye-set?
Hammerhead
400
Photophores are specialized cells on some deep-sea sharks. What do photophores allow these sharks to produce?
Produce their own light.
This glow-in-the-dark feature helps them camouflage in low-light waters, attract mates, and potentially confuse predators. These eerie lights flicker across their bodies like stars.
400
While many shark species are solitary, some—like lemon sharks and scalloped hammerheads—show social behavior doing what?
Forming schools or hierarchies.
Sharks in these groups may develop social preferences, choose frequent companions, and even exhibit cooperative hunting strategies.
400
What is a sharks taste primarily used to confirm?
If a bite is edible.
Sharks often "test bite" objects or unpalatable items and then spit them out
400
true or false: Sharks can get sunburned
True! In captivity or shallow, clear waters, sharks can suffer from overexposure to ultraviolet light. Just like humans, they need shade or deeper waters to avoid harmful UV rays. This has prompted aquariums to install shading for outdoor shark tanks.
500
This shark is known as the longest living vertebrate on earth. Researchers estimate that this species can live to be over 500 years old. They grow at a rate of 1cm per year and if this sharks raw meat is eaten, it is poisonous and can cause severe intoxication-like symptoms.
The Greenland Shark.
500
What does parthenogenesis allow some female sharks to do?
Reproduce without males.
500
Certain species of sharks like great whites or whale sharks can travel across oceans in search of food, breeding grounds, or warmer water. What is this called?
A migration. They can travel thousands of miles!
500
True or false: Sharks use their noses for breathing
False, they use their gills and mouth
500
What are shark eggs known as?
A mermaids purse