Animals experience joy. Scientists want to measure it
Scientists have long focused on quantifying fear and other negative emotions in animals. Now they’re trying to measure positive feelings — and it’s a challenge.
Scientists have long focused on quantifying fear and other negative emotions in animals. Now they’re trying to measure positive feelings — and it’s a challenge.
We summarize the week's scientific breakthroughs every Thursday.
Veronika the cow uses a brush as a tool to scratch herself, revealing rare problem-solving skills and expanding what we know of tool use in animals.