The National Park Service (NPS) is investigating an incident of vandalism and trespassing in Death Valley National Park.
Natural antibodies already present in the animals could hold the key to their survival.
The male tiger named Rama died of heart failure at a notorious zoo where hundreds of animals have perished in recent years.
Without cooking or eating anything unusual, a shaggy endangered animal has managed to produce the same smell of hot buttered popcorn.
Breeding populations are now described as 'threatened' and still merit protection under the Endangered Species Act.
The critically endangered rhinoceros was caught in a pit trap in East Kalimantan province.
Doing what's in the best interest of an endangered species means supporting the parasites that can do the animals harm.
The U.S. Fish and Wildlife Service says the animal has bounced back from its worst days, when only 150 were left in the wild.
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