How might one get pandas to mate? Try leg workouts.

Tech Insider
Two giant pandas lying on rocks.
Giant pandas Tian Tian, left, and Mei Xiang, right, sleep on rocks in their enclosure at the National Zoo.

Jessie Cohen/Smithsonian National Zoo/Newsmakers

A helicopter sparked a massive crocodile mating sex frenzy when they probably mistook the sound for a giant thunderstorm

Tech Insider
dozens of saltwater crocodiles on top of each other in Queensland, Australia
Dozens of saltwater crocodiles in a pen at Johnstone River Crocodile Farm in Innisfail, Queensland, Australia in 2006.

REUTERS/Russell Boyce

Zookeepers were stumped when a female gibbon got pregnant while alone in her cage. 2 years later they say there was a tiny hole that she and a neighboring male used to copulate through.

Tech Insider
White-handed gibbons, or lar gibbons, pair.
White-handed gibbons are typically monogamous and form a lifelong bond.

Getty Images

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