Police say the animals ate much of the man's body and he is yet to be formally identified. They believe he was a poacher because a loaded hunting rifle was found near the remains.
Two teams of researchers are studying tailed spiders captured and preserved about 100 million years ago, which could provide evidence of the species' evolution.
Esmond Bradley Martin's innovative work as a conservationist and investigator made him one of the global authorities on elephant and rhino poaching. He was found at home with stab wounds to his neck.
The Trump administration has reversed a key policy for protecting migrating birds. Officials say a century old federal law is outdated, and poses a burden for utilities and energy companies.
The resignation of Wayne Pacelle comes just hours after the nonprofit had issued a statement endorsing his leadership and dismissing allegations made by three women.