Orcas are under threat from man-made noise pollution. These scientists are fighting to protect them.

Scientists baffled by orcas ramming sailing boats near Spain and Portugal

Sounding the alarm: Scientists say noise pollution is affecting ocean health

Scientists are making flip-flops out of algae that are 100% biodegradable — and it could reduce plastic pollution

Scientists are making flip-flops out of algae that are 100% biodegradable — and it could reduce plastic pollution

Scientists Are The Galapagos Islands' First Line Of Defense Against Pollution

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This is Why Orcas Are Called Killer Whales

Multiple Pacific Northwest Orcas Are Pregnant But Another Is Ailing, Researchers Say

This is Why Orcas Are Known as Killer Whales

Orcas Are Now Attacking Boats Every Day, Even Sinking Some of Them

This Is Why Orcas Are Called Killer Whales

Orcas are ‘ripping open’ great white sharks for their livers hearts

Orcas are having a whale of time hunting Great White Sharks

Scientists Say Starving Orca Known as J50 Has Died

This Is Why Orcas Are Called Killer Whales

This is Why Orcas Are Known as Killer Whales

This Is Why Orcas Are Called Killer Whales

Experts Weigh In on Why They Believe Orcas Are Attacking Ships in Europe

That’s Who Orcas Are Afraid of the Most

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Orcas Swim Alongside Boat

Orca swims up to boat and splashes boaters with its tail

ORCA SPLASHES Kayaker In Close Encounter

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Woman feels like an 8-year-old again following unforgettable encounter with Orcas

Why hunting for 20-million-year-old petrified wood is so dangerous

What happens when the US debt reaches critical levels?

I went on a date with an AI chatbot, and it fell in love with me

Military dog handler rates 8 military working dog scenes in movies and TV

Trump dozes off at the start of his hush-money trial

Lionfish have invaded the Caribbean. Can we spear and eat enough of them?

WATCH: Pro-Trump rioters stormed the US Capitol and forced Congress into a recess

COVID-19 vaccines are making their way around the world, but global immunity is still far off

A single neighborhood makes 90% of the brass instruments in India — and the pandemic has put it in jeopardy

'We don't even eat the same type of rice': How Latino voters shaped the 2020 election from Florida to Arizona

Former Secret Service agent reveals what it takes to secure an inauguration

WATCH: Highlights from President Joe Biden's history-making inauguration