Species conservation and preservation

This image provided on Thursday, Nov. 28, 2019 by the Zoo Berlin shows one of the two Panda cubs in the Zoo in Berlin, Germany. China's permanent loan Pandas Meng Meng and Jiao Qing are the parents of the two cubs that were born on Aug. 31, 2019 at the Zoo in Berlin. (2019 Zoo Berlin via AP)

FILE - This Sept. 5, 2006, file photo, provided by the National Oceanic and Atmospheric Administration shows a bearded seal in Kotzebue, Alaska. A federal agency will decide by September how much ocean and coast will be designated as critical habitat for two ice seal species found in Alaska. The Center for Biological Diversity announced Monday, Nov. 25, 2019, it had reached an agreement with the Commerce Department for the Trump administration to issue a critical habitat rule for ringed and bearded seals. The Center for Biological Diversity sued in June because no critical habitat had been designated. (Michael Cameron/NOAA Fisheries Service via AP, file)

In this Sept 25, 2019 handout photo provided by the Fort Worth Zoo, Olaf is held by primary Puerto Rican crested toad zoo keeper Kelsey Barron, at the Fort Worth Zoo, in Fort Worth, Texas. Officials told The Associated Press Friday, Nov. 22, 2019, that Olaf, a critically endangered Puerto Rican toad, is one of more than 300 toads born via in vitro fertilization as U.S. scientists attempt to save it from extinction. (Fort Worth Zoo photo via AP)

Giant panda Bei Bei explores his surroundings on his first day at the Ya'an Bifengxia Base of the Giant Panda Conservation and Research Center in Ya'an in southwestern China's Sichuan Province, Thursday, Nov. 21, 2019. After a transcontinental flight on the "Panda Express," a furry American darling arrived early Thursday in his new Chinese home. The Washington-born giant panda Bei Bei was a beloved figure at the National Zoo, where he spent the first four years of his life. (Chinatopix via AP)

FILE - This undated file photo provided by the U.S. Geological Survey shows a side view of a recently emerged adult female western glacier stonefly from below Grinnell Glacier in Glacier National Park, Mont. The continued existence of two species of insects is in doubt because climate change is melting away the glaciers and year-round snowfields they depend on, U.S. wildlife officials said Wednesday, Nov. 20, 2019. The western glacier stonefly and the meltwater lednian stonefly found in the northern Rocky Mountains will be protected as threatened species under the federal Endangered Species Act. U.S. Fish and Wildlife Service officials said. (Joe Giersch/U.S. Geological Survey via AP, File)

Smithsonian National Zoo employees carry bamboo to a FedEx transport truck as giant panda Bei Bei departs the Smithsonian National Zoological Park Tuesday, Nov. 19, 2019, in Washington. (AP Photo/Michael A. McCoy)

FILE - In this Sept. 8, 2019, file photo, Miami Dolphins running back Mark Walton (22) warms up before an NFL football game against the Baltimore Ravens, in Miami Gardens, Fla. The Dolphins have released troubled running back Mark Walton, saying he had been involved in an unspecified police matter. Tuesday’s, Nov. 19, 2019, announcement came as the second-year player served a four-game suspension for violating NFL conduct and substance abuse policies. (AP Photo/Brynn Anderson, File)

FILE - In this May 17, 1999, file photo, two Makah Indian whalers stand atop the carcass of a dead gray whale moments after helping tow it close to shore in the harbor at Neah Bay, Wash. Earlier in the day, Makah Indians hunted and killed the whale in their first successful hunt since voluntarily quitting whaling over 70 years earlier. Two decades after the Makah Indian tribe in the northwestern corner of Washington state conducted its last legal whale hunt from a hand-carved canoe, lawyers, government officials and animal rights activists will gather in a small hearing room in Seattle to determine whether the tribe will be allowed once again to harpoon gray whales as its people had done from time immemorial. (AP Photo/Elaine Thompson, File)

In this Jun. 21, 2018, photo, a silver-backed chevrotain is captured by camera trap in an undisclosed forest in south central Vietnam. The species, commonly known as Vietnamese mouse deer, was rediscovered after 30 years. (Southern Institute of Ecology/Global Wildlife Conservation/Leibniz Institute for Zoo and Wildlife Research/NCNP via AP)