Most marine animals form their shells from calcium carbonate, which is a tough mineral also found in limestone. Some sponges and microorganisms use another compound silica. There is also a group of ...
Parenting Patch on MSN
Cartoon episodes about marine life for kids who love the ocean
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These cartoons about the beach can get your kids excited about the beach and teach them valuable life lessons at the same ...
Travel Mexico Solo on MSN
These are the 20 weirdest sea creatures in our oceans (and you've probably never heard of any of them!)
Wondering about the world's weirdest sea creatures? We've compiled this list of the 20 weirdest animals in the ocean to show ...
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