A study compiled data from more than 76,000 butterfly surveys across the continental U.S. The declines seen in the last 20 years alarmed researchers.

Scientists calculated just how much U.S. butterfly populations have declined in the past 20 years. The results brought some scientists to tears, and have them warning about dire implications for ...

The U.S. Fish and Wildlife Service’s proposal to designate the tiny migrating butterfly as threatened with extinction could have enormous consequences for landowners across its huge range, which ...

Norm Twigge, former chairman of the trust, has seen a huge drop in numbers at the butterfly sanctuary at Te Puna Quarry Park. “People don’t mean to kill them, but they are,” Twigge said.

A study compiled data from more than 76,000 butterfly surveys across the continental U.S. The declines seen in the last 20 years alarmed researchers.

A study compiled data from more than 76,000 butterfly surveys across the continental U.S. The declines seen in the last 20 years alarmed researchers.

Study shows huge declines in most butterfly species across continental US. Keith Matheny, Detroit Free Press. Wed, March 19, 2025 at 12:32 PM UTC. 5 min read.