Five animals that can regenerate
by Harry Lye from Technology | The Guardian on (#43MYB)
Lost tails and broken hearts can be fixed - and one creature can even eat without a mouth
Researchers in Mexico last week described how they are studying cave-dwelling tetra fish to better understand why some animals can regenerate tissue but others can't. The scientists performed surgery to remove some of the heart of river fish and cave fish from the species Astyanax mexicanus, finding that while some river fish do regenerate tissue, the cave fish just grew scars over the damage.
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