An orca pod has been harassing and killing porpoises for decades — but they don't eat them. Scientists still don't know why.

Tech Insider
tops of killer whales above water in Pacific Northwest
Killer whales near the San Juan Islands in Washington.

Wolfgang Kaehler/Getty Images

Airlines want you to lose weight. Ozempic could save them millions.

Tech Insider
Three boxes of Wegovy on a light wood counter
Weight loss drugs like Wegovy and Ozempic have become so popular over the last year that there have been shortages.

picture alliance/Getty Images

The world's first dog-fox hybrid was genetically confirmed in Brazil. It's a problem.

Tech Insider
Domestic dog on left and pampas fox on right.
A dog-fox hybrid between a domestic dog (like the one on the left) and a pampas fox (like the one on the right) was long thought to be impossible.

Lourdes Balduque / Edsel Querini / Getty Images

Panama Canal slashes the number of ships allowed through — drought means there isn't enough water in the channel

Tech Insider
Monrovia NSU CHALLENGER bulk carrier transits the expanded canal through Cocoli Locks at the Panama Canal, on the outskirts of Panama City, Panama April 19, 2023.
A container ship making its way through the Panama Canal in April 2023, before the drought lowered the water level..

Reuters/ARIS MARTINEZ

This Caribbean island was once plagued with rats that destroyed the ecosystem. Now, plant biomass has increased 2,000% thanks to environmental group efforts.

Tech Insider : Travel
A view of Redonda island.
Conservationists have been working to restore native life on the island of Redonda.

Addshore

The Mississippi River's flow is the weakest it's been in 35 years. Seawater overtaking the river could make New Orleans' drinking water too salty for months.

Tech Insider
An aerial view of the Mississippi River in New Orleans, Louisiana.
The Mississippi River is facing a low flow rate, which could allow saltwater to pollute New Orleans' drinking water.

The Washington Post via Getty Images

'Extinct' holly tree in Brazil rediscovered living in big city, say scientists

Tech Insider : Environment
The flowers of a Pernambuco holly tree (Ilex sapiiformis).
The flowers of a Pernambuco holly tree (Ilex sapiiformis).

Re:wild/Fred Jordão

I'm the CEO of a nuclear-fusion company, but starting out was tricky because I got famous on a reality-TV show about rich kids

Tech Insider
Side by side images show Richard Dinan, a caucasian blonde man with shoulder length hair, appearing at a press event in 2012 on the left, and him fixing a component of a rocket engine on the right.
Richard Dinan, CEO of Pulsar Fusion, shown left at a press event around the time he appeared in "Made in Chelsea" on the left, and shown next to a component of a rocket engine on the right.

Nick Harvey/WireImage/Getty Images; Pulsar Fus

US Army engineers are dredging the dwindling Mississippi River 24/7 and battling seawater creeping upstream toward New Orleans' drinking water

Tech Insider : Environment
A photo of one of the ships being used in New Orleans to try and stop salt water from getting into the Mississippi.
The New Orleans division of the USACE is working 24/7 to fight the salt water.

USACE

Scientists finally finished mapping Earth's 8th continent Zealandia, helping them solve the lost continent's mysterious history

Tech Insider
Zealandia
Scientists now have a complete map of Zealandia.

Nick Mortimer/GNS Science

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