The snail darter is no longer facing the threat of extinction.

In the 1970s, this fish spurred a US Supreme Court case about conservation law.

Its survival may be a testament to the ruling, but it’s complicated.

It was all because ofa tiny fish: the snail darter.

The snail darter,listed as an endangered species since 1975, lived in that river.

Presumably,onlyin that river.

It was a massive impasse that evolved into a long legal battle,eventually reaching the Supreme Court.

But in 1978, the court ruled in favor of protecting the snail darter.

“Not now,” the institution said in a statement, “nor in the foreseeable future.”

Later, the swimmers were discovered in other places.

(Williams is the biologist who listed the snail darter as endangered).

It’s a complex saga, yes, but one with a silver lining.

At last, the snail darter has exited the endangered species list and achieved redemption.

Correction, 12:15 p.m.: This story initially misstated the number of years since the Supreme Court ruling.

It’s been 44 years.