How Hydra animals regenerate their own heads

A new paper in Genome Biology and Evolution maps out for the first time how Hydra, which are a group of small aquatic animals, can regenerate their own heads by changing the way that their genes are regulated, known as epigenetics.

Thousands of turtles lay eggs on Nicaraguan coast

Thousands of sea turtles laid their eggs on Nicaragua's coast over the weekend under the watchful eye of the army, which protects the nests from possible predators—including humans.

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