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Image of the Day: Goodbye Colo

Colo, the oldest zoo gorilla and the first born in captivity, died on January 17 at age 60.

The Scientist Staff

Jan 17, 2017 | 1 min read

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Ecologists Use Museum Specimens to Dig into the Parasitic Past

A male and female Chiriqui harlequin frog (<em>Atelopus chiriquiensis</em>) photographed in 2010. The species was declared extinct in 2019.

How Do Scientists Decide a Species Has Gone Extinct?

A California Chinook Salmon Jumps into a waterfall during spawning season

Geneticists Light Up Debate on Salmon Conservation

Infographic comparing the fall and spring salmon runs

Infographic: An Incredible Journey

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