Cool Book: Trees of Life: A Visual History of Evolution

As someone who spends a good part of her life staring at evolutionary trees, Theodore W. Pietsch’s new book Trees of Life: A Visual History of Evolution caught my eye when I saw it reviewed on the website Brain Pickings. As someone who lives in New York City on a graduate student’s salary, however, I think I’ll content myself now with the preview pages available on its Google Books entry.

It’s worth a minute of your time to at least scroll though the images and get a sense for how our depictions of evolution have… evolved. Here’s one on the general evolution of rodents by New York’s own William King George in 1946:

NY Times Article: To Save Some Species, Zoos Must Let Others Die

Here’s an interesting article and video from the New York Times on the changing role of modern zoos. The video offers a behind-the-scenes look into biosecure rooms in the Bronx Zoo’s amphibian propagation center, where Tanzanian spray toads are being bred for future reintroduction into the wild. The article details the cold calculus needed to decide which endangered animals to keep and which to fade out, such as the lion-tailed macaque (Macaca silenus).

Lion-tailed macaque infant

To conserve animals effectively, however, zoo officials have concluded that they must winnow species in their care and devote more resources to a chosen few. The result is that zookeepers, usually animal lovers to the core, are increasingly being pressed into making cold calculations about which animals are the most crucial to save. Some days, the burden feels less like Noah building an ark and more like Schindler making a list.

The lemurs at this zoo are being saved in part because of a well-financed program to rescue rare fauna of the island nation of Madagascar. By contrast, although St. Louis has kept lion-tailed macaques since 1958, other zoos started getting rid of them in the 1990s because they can carry a form of herpes deadly to people. With only an aging population left in captivity in the United States, a species advisory group to North American zoos is expected to put the animals on a phaseout list soon.

If there are criticisms, they are that zoos are not transforming their mission quickly enough from entertainment to conservation.

Photo of lion-tailed macaque infant by Flickr user gentle lemur.