SEATTLE (AP) — European green crabs were found in Washington's inland waters in 2016, prompting extensive monitoring. Now state officials said this destructive invasive species is spreading in several coastal locations. They thrive in shallow water and soft sediment, which Washington's estuaries provide.

This spring, biologists discovered something they weren’t expecting to see. Male sage grouse proudly strutting during their quirky mating dances. The strange thing was, these birds were puffing up the bulbous air sacs on their chests, their songs calling out to nearby hens, right in the middle of a giant burn scar. “You’ll see these males displaying out in a completely burned, barren landscape. And they seem to be able to handle it,” says Michael Schroeder, who’s been working on sage grouse issues for the Washington Department of Fish and Wildlife for nearly 30 years.

The number of bald eagles in the lower 48 U.S. states — a population once on the brink of extinction — has quadrupled in the last dozen years to more than 316,000, federal wildlife officials say, despite steep declines in other American bird populations.

There has been a 1.6% reduction in the total number of butterflies observed west of the Rocky Mountain range each year since 1977, researchers calculated, which amounts to a staggering loss of butterflies over the timespan of the study period.

The U.S. Interior Department is delaying and reviewing the Trump administration’s last-minute roll-back of federal protections for the imperiled northern spotted owl, which called for slashing protections from millions of acres of Northwest forests.

The Washington Department of Fish and Wildlife will be conducting a prescribed burn next week in the north Potholes area of the Columbia Wildlife Area. The goal of the burn is to improve habitat for the northern leopard frog.

The big beige blur in the middle of the state may seem boring, but it is essential to the survival of grouse, orcas and people.