Yao honey hunter Orlando Yassene holds a male greater honeyguide temporarily captured for research in the Niassa National Reserve, Mozambique. The birds will flutter in front of people, tweet and fly from tree to tree to guide hunters to bees' nests that are hidden inside the trunks of hollow trees. This teamwork could date back thousands or even a million years.
The Tithe Barn at Avebury, owned by the U.K.'s National Trust, is home to a museum dedicated to the Avebury Henge. It's also now, unhappily, home to a very damaged thatched roof.
The National Trust
For 15 years, biologists in single-person, ultralight aircraft would each lead an experimental flock of young whooping cranes from Wisconsin to a winter home in Florida. But not anymore.
Starlings migrating in huge numbers come to roost this time of year in Rome. In the past, the city used special speakers that emit sounds of predators and starling distress calls to make the birds fly elsewhere. This year, falcons have been enlisted to drive the starlings out — without success.
Gabriel Bouys/AFP/Getty Images
California condors have enormous wingspans. That's fine in the wilderness, but when a bird of this size encounters a power line, the results can be fatal. The San Diego Zoo Safari Park has a program to help train birds to avoid the hazard.
Jon Myatt/U.S. Fish and Wildlife Service/Flickr
The skull of a chicken embryo (left) has a recognizable beak. But when scientists block the expression of two particular genes, the embryo develops a rounded "snout" (center) that looks something like an alligator's skull (right).
Bhart-Anjan S. Bhullar