Scientists used light to raise a mouse’s heart rate, increasing anxiety-like behaviors in the animal. The study offers a new angle for studying anxiety
New research from the Max Planck Institute for Evolutionary Anthropology describes stone-tool resembling artifacts made by monkeys in Thailand that may indicate that the first human use of stone tools was accidental.
Monkeys have been observed making stone tools unintentionally, so could ancient humans have been doing this too? Just how many ‘ancient tools’ are simply accidental flakes?