Even though the range of insect species far overshadows those of fish, amphibians, reptiles, birds and mammals, all of these groups contain impressive numbers. Mammals' 5,500 species might seem ...

Global population trends among 71,000 animal species show nearly half are "sliding toward extinction," some of them at alarming rates, a new study warns. Researchers found 48% of the species in ...

In the late 1980s, scientist Norman Myers coined the term "biodiversity hotspot" to refer to places with an exceptionally high number of species for their surface area.

How climate change is impacting fall foliage 03:44. More than a third of all tree species worldwide face extinction, threatening ecosystems, plants, animals and economies around the world, experts ...

A team of international scientists reveals the most critical locations in our global oceans for better marine conservation ...

An estimated 90 percent of all animal species on the Earth were wiped out. ... The number of medium and large carnivorous theropods reduced so that only tyrannosaurs survived in Asia and North ...

Since passage of the Endangered Species Act 50 years ago, more than 1,700 plants, mammals, fish, insects and other species in the U.S. have been listed as threatened or endangered with extinction.

BILLINGS, Mont. — Since passage of the Endangered Species Act 50 years ago, more than 1,700 plants, mammals, fish, insects and other species in the U.S. have been listed as threatened or ...

Of the more than 16,600 U.S. plant species the report has data on, around 34% are at risk of extinction—including almost half of all cacti species, 31% of ferns, 27% of orchids, almost 20% of ...