Dr. Jane Goodall is one of 58 prominent scientists and experts who have signed a letter asking the U.S. Fish and Wildlife Service (USFWS) to retain Endangered Species Act protections for Yellowstone-area grizzly bears.

Incidentally, their letter was released around the same time that Montana wildlife officials announced draft grizzly hunting regulations that, once approved, would offer $50 permits to local residents and $1,000 permits for out-of-state hunters to shoot the bears, The Guardian reported. The state’s grizzly hunting plan would be implemented if the bears are taken off the federal endangered species list.

USFWS has proposed de-listing the Yellowstone grizzlies, saying that their numbers have recovered to a point where federal protection is no longer needed.

However, opponents argue that the iconic animals are not ready for de-listing because climate change and other human-caused factors have threatened their food sources. The letter states:

Grizzly bears face multiple…