Though once one of the most abundant birds on Earth, the passenger pigeon went extinct due to overhunting in 1914.
Aquatic sloths once crawled the coast of Peru with dense bones that helped the animals sink to shallow seafloors and graze on vegetation.
Light pollution in tropical rainforests disturbs seed-dispersing bats, potentially slowing regeneration of certain forests.
Researchers have found four new substances in the stratosphere capable of depleting the ozone layer.
New 3D images from beneath a volcano in the Galapagos Islands show how these volcanoes differ from those in Hawaii.
Different regions of the United States are more susceptible to earthquakes than others, and now a new map helps pinpoint the regions most prone to seismic shock waves.
During a calm whale watching trip in a Mexican lagoon last week, a woman got smacked in the head with a tail fin.
Snow, a juveniles harp seal found in critical condition last month, made his way back into the Gulf of Maine yesterday (Feb. 26) after a month of rehabilitation.
A pilot has captured the first images of what geologists believe could be the largest landslide since 2010.
A pilot in Alaska has provided the first images of a landslide that occurred last week and that may be the largest since 2010.
The United States braces itself for another bout of Arctic air next week. We explain where that air is coming from and why it is considered part of what is known as a "polar vortex."
A landslide that occurred last weekend in Alaska may be the largest one to occur since 2010, scientists say.
Tadpoles choose to eat other tadpoles when alternative food sources are scarce, but otherwise try to avoid eating their own kin, a new study shows
In the first-ever example of a bacterium transferring from humans to plants, researchers have discovered a bacterium growing on grapevines that is related to the pathogen that gives humans acne.
Habitat ranges shift with climate change, but at different speed around the world. These maps help show how different regions might experience different rates of habitat shifts.