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Animals

These male spiders catapult away to avoid being cannibalized after sex

In a leap for survival, male Philoponella prominens spiders leverage hydraulic pressure to extend leg joints and fling themselves off hungry females.

Life

‘The Last Days of the Dinosaurs’ tells a tale of destruction and recovery

A new book takes readers back in time to see how an asteroid strike and the dinosaur extinction shaped life on Earth.

Physics

Gravitational waves gave a new black hole a high-speed ‘kick’

Ripples in spacetime revealed that two black holes united into one, which then sped off at around 5 million kilometers per hour.