predator

Groundbreaking drone footage has revealed how the world's fastest fish spectacularly changes color right before it kills.

How would you feel if you were standing at the stern of the boat as twenty 10-foot lemon sharks circle at the surface in front of you and in the depths below an even larger tiger shark cruises the algal reefs? Would you make that jump into the water, with nothing between you and these apex predators? Would you keep your calm?

Back in 2013, researcher Mauricio Hoyos Padilla and a Discovery network group of filmmakers and photographers paid a visit to Mexico’s Guadalupe Island, where dozens of adult great white sharks congregate every year. During the expedition, they came across one of the largest great whites ever captured on camera: a female shark measuring over 20 feet long.

Admit it, you've always wanted walk around a rainforest hunting Arnold Schwarzenegger using your cool thermal vision and shoulder cannon, and now you can... sort of. While the shoulder cannon is still pending, and your chances of getting Mr. Schwarzenegger to a rainforest of your choosing are slim, a new smartphone case dubbed the FLIR ONE will turn your iPhone into an awesome thermal camera of your own.

The Peregrine Falcon, also known as the Duck Hawk (a fact you won't soon forget after watching this video), is a spectacular bird of prey. Claiming the title of fastest member of the animal kingdom, a Peregrine Falcon can reach speeds in excess of 200mph during its characteristic high-speed hunting dives -- take that cheetah.

In the video above, YouTube user drhodie's falcon Dora happens to have a camera on her back as she performs one of these dives and takes an unsuspecting duck in mid-air.

Computer vision PhD student Zdenek Kalal developed a camera called “Predator” that learns …