At least two other species of goose existed there until people arrived and, presumably, ate them.
ECONOMIST: Feathers are flying in the world of bird classification
Two other species of threatened shark will be voted on later on Monday.
Since working on M. acuminate, the German team has discovered that two other species of fire beetle, this time in Australia, also use infrared detectors to guide them to fire.
BBC: NEWS | Science/Nature | Jewel beetle flies into the inferno
Speaking to the BBC, Mr Jardine explained that the zander, sometimes known as the "pike-perch" because of its similarities to the two other species of fish, was an unusual choice of target for a pike.
There are two other species of wombat, the common (or bare-nosed) wombat, which is not endangered and is found on the southeastern coast of Australia (in New South Wales, Victoria and Tasmania) and the southern hairy nosed wombat, which is endangered and is found in arid, sandy pockets in the southern part of Australia (in South Australia and Western Australia).
BBC: Protecting a wombat species that is as fast as Usain Bolt
Meanwhile Arctophila superbiens and Arctophila bombiformis, two other hoverfly species, each of which accurately resembles a particular bumblebee species, are restricted in distribution and rare.
Over most of their ranges, the two species look quite similar to each other: the females are brown and the males are black with small, white patches.
He did indeed develop a theory that species evolve and that the two crucial conditions of evolution were time and favourable conditions, in other words that species adapt to their environment.
Two distinct traits of Homo sapiens, as compared to other species, are technology and social cooperation among non-relatives.
Males of the two antbird species have evolved the same call to keep other males off their patch.
Ranchers and farmers have complained for years about the damage feral pigs can cause, but federal and state officials said the loss of crops, the spread of noxious weeds as the pigs carry seeds to new spots and the stress they put on endangered species and other wildlife is now worse due to a persistent drought that has hammered two-thirds of the country.
Other small carnivores caught on camera were the Sunda stink-badger (Mydaus javanensis), and two species of mongoose, the very common Short-tailed mongoose (Herpestes brachyurus) and the Collared mongoose (H. semitorquatus), and all three Bornean otter species, the Smooth-coated otter (Lutrogale perspicillata), Asian small-clawed otter (Aonyx cinereus) and the extremely elusive Hairy-nosed otter, considered to be the world's rarest otter.
BBC: Earth News - Rare Otter civet filmed for first time in Borneo
应用推荐