Discover why tiger shark teeth are so powerful, from their saw-like serrations to their bone-crushing bite force.

I always put out a dish of crushed eggshells near my birdfeeder this time of year. Calcium is hard to come by in the natural world, and many birds raid the nests of others just to eat the shells.

They found fossilized shells of a snail-like mollusk called Ecphora that lived in the mid-Miocene era--between 8 and 18 million years ago. Ecphora is known for an unusual reddish-brown shell color, ...

The most shocking discovery? These early mollusks resembled flat, shell-less slugs adorned with a protective spiny armor, as the newly discovered fossils reveal. In contrast to the usual fossil ...

Evolution by natural selection can help explain why shells became widespread among mollusks, but it cannot fully elucidate how an individual creature builds a skeleton as exquisite as, say ...

One is the shell itself, the skeleton, and the other one is essentially the group name for shelled marine mollusks, mostly snails and clams. - [Jose] The shell is there from minute one ...

Yes, the largest living shelled mollusk is the Giant Clam, Tridacna gigas. The world record size for that species is 120 cm / 47 inches / almost four feet long. Donald Dan is a retired shell dealer.

For over a decade it has been possible to extract and sequence ancient DNA from empty mollusc shells up to tens of thousands of years old. However, these techniques have so far proven very ...

Marcel Proust had his memory-infused madeleines. Marcel Marceau had his invisible dog and a lifetime of pantomime. But it’s unlikely we’ll ever see a more beguiling Marcel than the inch-tall ...

A gentle pleasure isn’t necessarily a flimsy one. The hero of the faux documentary Marcel the Shell With Shoes On is a diminutive mollusk shell with one eye, two legs, and a deeply philosophical ...