Facts: The Sawfish (Carpenter Shark)

Sawfish or carpenter sharks are modified rays with a shark-like body. They belong to a group of cartilaginous fish called elasmobranchs that includes sharks, skates, and rays. Amazingly, they have evolved a long, saw-like snout edged with sharp teeth. This snout is called a rostrum and it can be used in a back and forth […]

Shark Reproduction | SHARK ACADEMY

Are they born from eggs or live born? Or both? How do sharks reproduce? I’m Jonathan Bird and this is shark academy! Unlike fish, which produce large amounts of eggs, most of which never reach maturity, sharks produce far fewer, but larger, offspring, and they have a much better chance of reaching adulthood. Sharks can […]


Next on jonathan Bird’s Blue World, Jonathan heads to Canada to search for Greenland sharks! Hi, I’m Jonathan Bird and welcome to my world! ( ♪ music ) We often think of sharks as creatures of the tropics, living in clear warm waters near coral reefs, or perhaps prowling the shallows near a beach. But […]

Shark Coloration | SHARK ACADEMY

Do sharks have camouflage? Do they need camouflage? I’m Jonathan Bird and this is Shark Academy! Most people, when they imagine a shark, think of something like this: a reef shark, with the classic sharky look. Almost all sharks of this type are grayish with a darker top and lighter underside. This is called countershading. […]

Shark Central

On rangiroa atoll and French Polynesia something remarkable happens with each change of the tide millions of gallons of water are channelled into the narrow confines of two passes reaching speeds of 6 knots these torrents of water collide with waves arriving from the open sea this turbulent realm is home to a pod of […]

Philippines Thresher Sharks | JONATHAN BIRD’S BLUE WORLD

Coming up next on Jonathan Bird’s Blue World, Jonathan goes deep in search of Thresher sharks! There are many tall tails in the ocean, and not all of them are true. But when it comes to sharks, there is only one truly tall tail. And that’s the tail on the Thresher shark, one of the […]


The Tiger shark: one of the world’s most feared and dangerous sharks. It patrols the shallows of tropical oceans looking for a meal. But what would it be like to dive with a Tiger shark? How will it react to a diver? I’m going to investigate Tiger sharks━and I’m going to do it without a […]

What If There Were No Sharks?

[SCARY MUSIC] Why are sharks so scary?! Bloodthirsty beasts just waiting out there in the waves to feast on human flesh. If only we could get rid of these guys our vacations would be so much safer, nothing to worry about while we’re surfing and frolicking out there in the ocean. Except that’s not the […]

Whitetip Reef Sharks hunting at night at Cocos Island

During the day, this reef has vast schools of fish on it. At night, all those fish are still here. Most are holed up inside the reef sleeping. But this Creole Wrasse is sleeping right out in plain view of the sharks. Is it in trouble? A bright blue Parrotfish sticks out like a sore […]