As he nears 200 years of age, Jonathan the tortoise has been receiving a great deal of international attention. However, longevity is not the only reason why we should find Jonathan to be of special ...

All products featured here are independently selected by our editors and writers. If you buy something through links on our site, Gizmodo may earn an affiliate commission. Reading time 2 minutes Can ...

From Pavlov’s dogs to genetic switches in our brains, fear learning is shaped by a dance between experience and biology. Classical and operant conditioning explain how fears can form and stick, while ...