Bleached coral dies when exposed to heat stress for too long, threatening the bountiful marine ecosystem that depends on it for survival.

Bleached coral dies when exposed to heat stress for too long, threatening the bountiful marine ecosystem that depends on it for survival.

Bleached coral dies when exposed to heat stress for too long, threatening the bountiful marine ecosystem that depends on it for survival.

Some European universities are offering funding for American scientists considering a relocation and promising a safe haven free from academic censorship.

The footprints are the first clear evidence that the two hominin species shared a habitat, raising questions about whether their interactions shaped human evolution.