Bringing back sunflower sea stars, which are functionally extinct in California, could help restore kelp forests off the ...

"It's kind of like the … 'you don't know what you have until it's gone' adage." Scientists race to save rare creature after ...

The star, Pycnopodia helianthoides, reaches one metre in diameter and has as many as 24 arms. But it disintegrates in a few days when exposed to sea star wasting disease, whose cause is unknown.