What compels them to open up their shells? Watch the video above, and we will explore the topic further. Filter feeding is an ...

LOOK: 200 tons of fossilized giant clam shells were seized by authorities in Palawan on Friday, April 16. Four people were arrested following the seizure, and the shells are estimated to be worth ...

And that shell comes in all different sizes. There are small clams, like these, which are often used for cooking. And then there are giant clams, which can grow more than a meter long and weigh as ...