Over 500 species of sharks exist in our oceans today, ranging from hammerheads (Sphyrnidae) to tiger sharks (Galeocerdo ...

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, ...

There almost seems to be no end to the different kinds of sea shells you can find in these stores. But before you buy sea shells in a store, see what you can find on the beaches along the shore.

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 ...