Pandas Need More Passion In Their Love Lives, Say Scientists

WASHINGTON (Reuters) – In pandas as in people, it appears that passion prevails.

Scientists studying captive breeding of the endangered bamboo-eating bears said on Tuesday pandas are far more likely to mate successfully and produce cubs when they show through a complex series of behaviors a preference for a potential mate.

When giant pandas in captive breeding experiments displayed no such preference, despite being deemed genetically suitable as a pair, their chances of successfully mating dropped to zero.

“Incorporating mate choice into conservation breeding programs could make a huge difference for the success of many endangered species breeding programs, increasing cost-effectiveness and overall success,” said conservation biologist Meghan Martin-Wintle of the San Diego Zoo Institute for Conservation Research.

The study involved more than 40 pandas at a conservation and research center in China’s Sichuan province. Pandas were put in large open-air enclosures where they could choose between two potential mates.

When both a male and a female showed a preference for each other, there was about an 80 percent chance they would produce a cub. When one of the two showed a preference for the other, there was about a 50 percent chance they would produce a cub.

When neither showed a preference for the other, there was a zero percent chance for a cub.

The pandas showed interest in potential mates through behaviors such as vocalizations called “chirps” and “bleats,” and “scent-marking” by rubbing glands against a surface or object. Females showed their angiogenital region to males, put their tails in the air and walked backward toward males. Males performed a handstand against a vertical surface and urinated.

“We learned that, just as in humans, breeding signals are complicated,” Martin-Wintle said.

Conservation breeding programs act as a fail-safe against extinction, providing animals for reintroduction to the wild to bolster dwindling populations. Pandas, remaining in the —> Read More