suggests that *vertebrate populations have continued to decline steadily by around two percent every... studies and NGO reports, covering 3,700 different species of animals, which represent about 6 percent ……

Wildlife Fund report released on Sept 16. *Species essential to global food supply were among... blamed several factors for the decline, including pollution, over-fishing and climate change. Marine指“与海 ……

sides.B. There are new marine species in the poles.C. There is a sharp decline in the number of marine... in the poles.C. There is a sharp decline in the number of marine species.D. At least 304 marine species ……

shark (远洋白鳍鲨) and great hammerhead（锤头鲨）. The study found the decline hit the largest species first... catches, Nathan Pacoureau, the study researcher, noted.The study analyzed 31 species; 24 now risk ……

estimate the existence of around 8.7 million species of plants and animals.First coined (创造... the existence of around 8.7 million species of plants and animals.Biodiversity is crucial as it forms ……

is urging the government to declare the animal an endangered species.There are about 100,000 koalas... danger: urban spread. It has caused their population to decline. Many of the animals are hit by cars ……

. The male of the species is doomed as the Y chromosome withers away.Over the last 40 years sperm counts... at all for procreation.Recently, things have got even more serious for the doomed male of the species ……

decline. “Unless the species is in danger, interbreeding (异种交配) between the two subspecies... decline. “Unless the species is in danger, interbreeding (异种交配) between the two subspecies should ……

. A quarter of all mammal (哺乳动物) species and 12 percent of birds could die out, a recent United Nations report warned.It adds up to 1,130 mammal species and 1,183 species of bird that are at risk ……

The spots look like the Eye of Sauron.  Natural History Museum  Special names can...阅读时间  2分钟词数 120  建议阅读时间  2分钟According to the Natural History Museum in London, UK ……

.“The ocean influences everything we care about,” she said.Earle, noting the rapid decline in the health of the oceans, said 90 percent of larger fish are already gone.“Many of the smaller species ……

没有昆虫的世界会怎样？没有昆虫的世界会怎样？词数 334  测试见IV版建议阅读时间 7分钟词数 334  测试见IV版建议阅读时间 7分钟The decline of insect populations is worrying scientists. VCGThe decline of insect populations is worrying scientists ……

of species called the rusty patched (铁锈色斑纹的) bumblebee. It was declared endangered by federal... searching for the rusty-patched bumblebee.Since the bumblebee made the federal endangered species list ……

it, according to a new study.“Recent extinction rates are *unprecedented in human history and highly unusual in Earth’s history,” according to a study published on June 19 in the journal Science Advances ……

. Now they think they’ve found a new member of the human family tree.Scientists discovered a species... for scientists. First of all, when was this species alive? Lee Berger, one of the researchers said ……