Study proves turtle embryos move themselves within shells to exploit best temperature conditions

(Phys.org) —A team of researchers working in China has proven that the three-keeled pond turtle embryo is capable of moving itself towards or away from a heat source in order to warm itself or cool down. In their paper published in the journal Biology Letters, the team describes how they subjected turtle embryos to various heat scenarios while monitoring their movements inside their shells to show that the turtles were directing their own actions while still inside their eggs.

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