Just as the world’s zoos breed critically endangered animals in captivity to repopulate the wild, scientists are building a global effort to freeze corals for reef restoration.
Surviving solely in zoos and botanic gardens are 33 animal and 39 plant species.
Historians aren’t sure exactly when the first zoo was built, but it’s clear humans have kept exotic animals for thousands of years.
A fundamental change in how North American zoos and aquariums are accredited supports their animal conservation and species survival work.
There are so few wild ocelots in the US that the cats are becoming inbred, with a bad prognosis for their ultimate survival. But researchers are perfecting ways to get new genes into the population.
The lawsuit resembles earlier legal efforts to make tobacco companies remedy wrongdoing.
Life in captivity causes observable harm to the structure and function of large mammals' brains.
One aquarium in Japan has asked the public to make video calls to captive garden eels so they don't forget about human visitors.
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