Merrit Kennedy

A Flint activist who worked to expose the Michigan city's lead crisis is being hailed as an environmental hero. She's one of the winners of the 2018 Goldman Environmental Prize.

The honor, announced on Monday, recognizes grass-roots environmental activists from around the world.

A researcher was surveying seabirds off the coast of Vancouver Island when he spotted something unexpected: a huge group of common bottlenose dolphins — about 200 of them — breaching and swimming.

This was a bizarre sight because this kind of dolphin (Tursiops truncatus) has never before been spotted in this area. Bottlenoses like the warmer waters farther south.

The Great Barrier Reef off the coast of Australia has seen two massive bleaching events over the span of two years. And that's led to a widespread die-off of the corals, according to a new study.

Updated at 10:35 p.m. ET

One person died after a Southwest Airlines plane experienced serious engine trouble Tuesday and was forced to make an emergency landing in Philadelphia. Seven other people on Flight 1380 were injured. It is the first U.S. airline fatality since 2009.

This was years in the making: An adorable, critically endangered male lowland gorilla has been born at Smithsonian's National Zoo and Conservation Biology Institute. Zoo staff have named him Moke [Mo-KEY], a name that means "little one."

Inspectors haven't yet been able to access the site of an alleged chemical weapons attack in Syria that prompted a U.S.-led coalition to launch airstrikes against suspected Syrian chemical sites on Friday. And the parties involved are trading blame about why.

SAG-AFTRA is calling for an end to auditions in private hotel rooms or residences, after a spate of sexual harassment allegations against powerful Hollywood figures.

"We are committed to addressing the scenario that has allowed predators to exploit performers behind closed doors under the guise of a professional meeting," the union's president, Gabrielle Carteris, said in a statement.

Four of last season's hurricanes were deemed so destructive and deadly that the U.N.'s World Meteorological Organization has decided to retire their names.

What makes a group of animals genetically similar to each other?

Traditionally, scientists have thought that animals living near each other are more likely to have things in common genetically. Another explanation is that animals living in similar environments — like high altitudes or hot temperatures — might evolve in similar ways.

Updated at 4:50 p.m. ET

At a U.N. Security Council meeting Tuesday, Russia has vetoed a resolution on Syria drafted by the United States on the latest apparent chemical weapons attack, at a time when President Trump is considering launching new military action.

Meanwhile, inspectors from the international chemical weapons watchdog prepare to head into the country.

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