Natural History Museum%2c London2mon
Do sharks have bones?
Shark skeletons don’t include any bones at all. But their jaws, spinal column and the cartilage surrounding their brain are strengthened by calcium salts, which get deposited into their skeletal ...
Sharks Are 50 Million Years Older Than Trees—A Biologist Explains
Sharks have roamed the open seas for close to half a billion years and have witnessed the Earth’s evolution from a primordial ...
Al Bawaba News4y
Shark Skeleton That Lived 150 Million Years Ago Found in Bavaria
There were 150 teeth preserved within the dental record of the shark skeleton. An incredible fossil of an 8 foot long shark - that would've roamed the Earths oceans about 150 million years ago ...
Natural History Museum%2c London1y
Shark evolution: a 450 million year timeline
Sharks belong to a group of creatures known as cartilaginous fishes, because most of their skeleton is made from cartilage rather than bone. The only part of their skeleton not made from this soft, ...
Smithsonian Magazine5y
Megalodon May Be Extinct, but There’s a Life-size One at the Smithsonian
Most of the shark’s skeleton was composed of cartilage, which rapidly decays and doesn’t leave behind fossils. Now, all that remains of the magnificent megalodon are teeth, vertebrae and ...
Digital Resurrection: Scientists Are on a Mission To Preserve the World’s Most Endangered Marine Mammal
FAU, SeaWorld San Diego, and the San Diego Natural History Museum have joined forces to scan the rare skeleton of the vaquita ...