“The taste was delicious, and none of us suffered any ill effects from the meal.”

All the biggest science news stories of the week.

This 25-million-year-old lake holds one-fifth of all the planet’s fresh surface water.

If we let this fall, it’s the first domino in a sequence of very, very bad, no good…

Why did two different fungi separately co-evolve the same psychedelic compound?

Escapees of the restaurant trade are making things tricky for the conservation of giant salamanders.