Researchers aboard the EV Nautilus research vessel have observed a "sea pen" polyp in the Pacific Ocean for the first time and its "barbed tentacles" and pale six-foot-long stalk make it look like a ghastly flower from the Underworld.
Researchers aboard the EV Nautilus research vessel have observed a "sea pen" polyp in the Pacific Ocean for the first time and its "barbed tentacles" and pale six-foot-long stalk make it look like a ghastly flower from the Underworld.