Lee Perry-Gal measures chicken long bones at the zooarchaeology lab, Zinman Institute of Archaeology, University of Haifa. Courtesy of Guy Bar-Oz hide caption

itoggle caption Courtesy of Guy Bar-Oz

During the 2014 Tournament of Roses Parade, SeaWorld's float was accompanied by police in Pasadena, Calif. PETA supporters were arrested for protesting the float that day, and PETA claims that a SeaWorld employee posing as a PETA volunteer tipped police off to the protest. Ringo H.W. Chiu/AP hide caption

itoggle caption Ringo H.W. Chiu/AP

In this colorized image of a brain cell from a person with Alzheimer's, the red tangle in the yellow cell body is a toxic tangle of misfolded "tau" proteins, adjacent to the cell's green nucleus. Thomas Deerinck/NCMIR/Science Source hide caption

itoggle caption Thomas Deerinck/NCMIR/Science Source
Stephen Buchmann/Scribner

Visual effects supervisor Jake Morrison wanted Ant-Man's titular insects to be both accurate and relatable. Marvel hide caption

itoggle caption Marvel

Ioanna Mattke holds Raven, one of six hens that her family owns. The Mattkes have raised Raven since she was a day old. Jason Beaubien/NPR hide caption

itoggle caption Jason Beaubien/NPR

The tarantula hawk, undoubtedly eyeing its next hapless eight-legged prey. Fred Holley/Flickr hide caption

itoggle caption Fred Holley/Flickr

A bumblebee collects pollen from a flower. New evidence suggests climate change has left bumblebees with a shrinking range of places to live. Yuri Kadobnovy/AFP/Getty Images hide caption

itoggle caption Yuri Kadobnovy/AFP/Getty Images