Scientists sink their teeth in the great white’s genome
“[Its] teeth are the size of a sand grain. Without a microscope you’d just throw them away,” says one of its discoverers.
The largest fish in history may have been doomed by its active metabolism that couldn’t keep up with a tough ice age.
A ferocious predator actually enjoys a vegetarian snack from time to time.
Lessons from the fastest-swimming shark on the planet.
The method could open a breakthrough for shark research.
Yes, these sharks live inside a volcano.
We’re literally eating the viability of tomorrow’s oceans.
We’ve just started discovering the tip of the iceberg in terms of deep sea creatures.
Specifically, they put their shoulders into it.
Some 20 million years ago, both the Atlantic and the Pacific were haunted by a huge shark the size of a car.
The biggest fish in the pond.
A groundbreaking study found a giant lurking beneath the Arctic might be the oldest living vertebrate today.
We now have shark vision.
Flap your hands like a shark.
Helicoprion is an extinct genus of shark-like, cartilaginous fish that lived from the early Permian (~290 m.y. ago) all through to the massive Permian-Triassic extinction episode (roughly 250 m.y. ago.)
Sharks have a reputation of solitary predators. They’re not the life of the party, sort to say. One new research casts doubt on this assumption, though. The findings suggest that sharks, or at least Sand Tiger sharks, have a complex social structure not all that different in some instances from notoriously social mammals like dolphins, chimps or even humans.
Researchers at University of Hawaii, Manoa in collaboration with a team from the University of Tokyo were surprised to find not one, but two species of deep-water sharks that have positive buoyancy. Most sharks have a negative buoyancy, meaning if they stop swimming they’ll sink to the bottom, and some researchers have posited that there may be some species with neutral buoyancy. Finding sharks that defy this conventional wisdom is definitely an important discovery. Now the researchers are trying to find out how the positive buoyancy is attained and whether other shark species have this ability.
At least in one aspect, sharks behave as world class mathematicians – although the cause may be sensibleness more than cleverness. The behavior associated to both mathematicians and sharks is called the Lévy flight. A Lévy flight is a random walk in which the step-lengths have a probability distribution that is heavy-tailed. In other words, it’s a seemingly complex form of random
I’ve given up on watching TV years ago – the occasional documentary or football game (guilty) once in a blue moon will do for me. But recently, there are fewer and fewer quality documentaries being shown on TV; not to say that there aren’t any awesome ones being made – there’s excellent documentaries coming out every year, but TV channels