Legend had it that ravens followed wolves to fresh kills. A tracking study reveals a much more interesting scavenging ...
A new study finds Yellowstone’s ravens don’t just follow wolves but use mental “maps” to predict likely kill sites. Researchers say the birds’ memory ...
NPR's Ailsa Chang talks with Max Graham, a writer for High Country News, about Alaska's declining caribou population, and the state's plan to save them by shooting predators like grizzlies and wolves.
These Birds Have A Mental Map Of Every Wolf Kill in Yellowstone In A Nutshell Ravens don’t follow wolves to find food. Instead, they memorize areas where wolf kills happen frequently and fly there on ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果