Fish

The Supreme Court building is seen on Capitol Hill in Washington, Tuesday, March 26, 2019. The Supreme Court is returning to arguments over whether the political task of redistricting can be overly partisan. (AP Photo/Carolyn Kaster)

In this March 12, 2019 photo released by the Sea Shepherd organization, the body of a dead animal believed to be a vaquita, a critically endangered species of porpoise, floats in the ocean after being found in an illegal totoaba net recovered by Sea Shepherd in the Gulf of California off of Mexico. The environmentalist group Sea Shepherd said Thursday, March 14, 2019 that it found the badly decomposed body of what appeared to be a vaquita porpoise, one of perhaps only 10 that remain in the world. (Sea Shepherd via AP)

FILE – In this July 12, 2011, file photo, two rowers paddle along the Cuyahoga River in Cleveland. Federal environmental regulators say fish living in the northeastern Ohio river that became synonymous with pollution when it caught fire in 1969 are now safe to eat. The easing of fish consumption restrictions on the Cuyahoga River was lauded by Republican Gov. Mike DeWine as progress achieved by investing in water quality. (AP Photo/Tony Dejak, File)

FILE - In this May 26, 2017, file photo, Susie Gelbart walks near petroglyphs at the Gold Butte National Monument near Bunkerville, Nev. As Democrats in Congress prepare to scrutinize President Donald Trump's review of 27 national monuments, most of the recommendations made by ex-Interior Ryan Zinke remain unfinished, seemingly stuck on the backburner as other matters consume the White House. Zinke recommended cuts to the boundaries of Gold Butte National Monument to free up a water district that he thought shouldn't have been included in the boundaries. (AP Photo/John Locher, File)

This undated photo provided by Paul Tixier in March 2019 shows a Type D killer whale. Scientists are waiting for test results from a tissue sample, which could give them the DNA evidence to prove the new type is a distinct species. (Paul Tixier/CEBC CNRS/MNHN Paris via AP)

In this Feb. 21, 2019 photo, provided by UC Santa Barbara, Jessica Nielsen, a conservation specialist, examines a beached hoodwinker sunfish at at Coal Oil Point Reserve in Santa Barbara, Calif. (Thomas Turner/UC Santa Barbara via AP)

FILE-In this Sept. 3, 2018 file photo, a lobster walks on the ocean floor near a lobster trap off Biddeford, Maine. Maine officials say lobstermen brought more than 119 million pounds (54 million kilograms) of the state's signature seafood ashore in 2018, with the second-highest value on record. (AP Photo/Robert F. Bukaty, File

Dutch fishers and their families hold up banners during a protest outside parliament in The Hague, Netherlands, Tuesday, Feb. 12, 2019, supporting electric pulse fishing. Dutch fisherman are lobbying lawmakers in a last-ditch attempt to avert a European Union ban on the practice of using electric shocks to stun fish before scooping them up in nets. (AP Photo/Mike Corder)

In this undated photo provided by researcher Alex Jordan in February 2019, a cleaner wrasse interacts with its reflection in a mirror placed on the outside of the aquarium glass. The mirror itself cannot be seen in this photo because the aquarium glass itself becomes reflective at the viewing angle of the camera, but the fish sees the aquarium glass as transparent because of its direct viewing angle. In a report released on Thursday, Feb 7, 2019, scientists say that 10 fish they studied can pass a standard test of recognizing themselves in a mirror _ and that is posing a key question for experts in animal mental prowess. Does this 50-year-old test for self-awareness in animals really show that ability? (Alex Jordan via AP)