Toothless Wonders: 10 animals that thrive without teeth
All kinds of animals are present on this Earth. Most animals have ravenous teeth that are used to hunt other animals. Here ...
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Why A Worm Regrows After It Gets Cut In Half
In a bizarre twist, the stem cells around the injury site may actually form into a new tail, leaving a worm with two tails and no head. Lacking a mouth or brain, it can survive for a short time by ...