Researchers listed species that tend to bond as monogamous couples, but many are still threatened with extinction, according to the International Union for the Conservation of Nature.
Researchers listed species that tend to bond as monogamous couples, but many are still threatened with extinction, according to the International Union for the Conservation of Nature. The list includes gibbons listed in the Red Data Book, geese, dholes (photo), marine angelfishes, and albatrosses.
The wolf, originally the most widespread mammal in the world, has disappeared from certain areas. In the 1980s, dholes that inhabited North America disappeared from the wild. In 1987, zoologists managed to return the animal to the wild. And now the wolves often mate with coyotes, threatening the former’s existence as separate species.
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© RIA Novosti . Larisa Saenko
Swans that symbolize ‘eternal’ love can remain loyal to their partner to the end of their lives. The birds are also under the threat of extinction.
According to the International Union for the Conservation of Nature, the Chinese goose population that inhabits Eastern Siberia, Northern China, and Mongolia is declining. The reasons include poaching, as well as declining swamp and river levels.
IUCN experts also noted that the albatross will fly tremendous distances to return to its partner to mate. However, Tristan albatrosses, with a wingspan of more than three meters, have already disappeared from Tristan, the main island of the Tristan da Cunha Archipelago, in the southern Atlantic Ocean. The birds are now endemic to Gough Island, where there are no more than 2,700 pairs. The birds often die after becoming entangled in fishing nets.
Loving pairs of tropical marine angelfishes that inhabit coral reefs and lagoons defend their family territories from other marine angelfishes. At present, the population of marine angelfishes is extremely unstable and remains endangered due to fishing for tropical fish collectors.
