Elephants are among the smartest, largest animals on the planet. With all that size and brain power, it should come as no surprise that making a baby elephant is no easy task. In fact, elephants have ...

University of Cambridge scientists say they have identified a key pathway that controls the expansion of the placental vascular tree in late gestation, demonstrating that fetus-derived signals are ...

Discover animals with the longest gestation periods, including elephants, sperm whales, rhinoceroses and walruses. Learn why ...

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Believed to have gone extinct at the time of the dinosaurs, the coelacanth has one of the longest gestation periods on Earth — and it can hunt in a headstand. When you purchase through links on our ...