Other winners of this year’s prizes include research on the physics of ducklings and the therapeutic potential of ice cream.

Australians are resorting to increasingly drastic measures to keep cockatoos out of their garbage bins.

Macaques continued to search for answers to an unsolvable laboratory task, seemingly refusing to believe that the correct answers were random and inconsistent.

Though it’s poetic to say that ants were grieving the bee at a funeral, the reality is a bit more prosaic.

In Chapter 1, “The Science of Animal Dreams,” author David M. Peña-Guzmán relays the history of researchers digging into the mental realities of nonhuman brains.

Pet dogs produce a larger volume of tears when they are reunited with their owners than with acquaintances, possibly because of surging oxytocin levels—findings that could be the first evidence of emotional crying in nonhuman animals.

Research shows that humans aren’t the only animals whose imaginations run wild while they sleep.

In a citizen science project, thousands of pet dogs are helping scientists to understand what happens to memory and cognition in old age.

Female fruit flies assess the physical symmetry of male suitors through the songs they sing, a study claims.

Bottlenose dolphins can recall trivial details of a prior event to later solve a novel task, a study finds, suggesting these mammals are capable of episodic memory.

Collisions with small craft are rare, but there are conditions that can make these encounters more likely.

An odorant found in the pee of pregnant mice—and in bananas—induces stress but also relieves pain in male mice, a study shows.

Many species of birds and other vertebrates form pair bonds and mate with just one other individual for much of their lives. But the unions don’t always work out. Scientists want to know the underlying factors.

Advances in genetics in recent years has revealed that many apparently exclusive pairs in fact sometimes mate with individuals other than their partner, but social monogamy is widespread.

And how do scientists go about answering that question?

Arboreal salamanders use skydiving techniques to avoid smashing to the ground after a fall.

Researchers report molecular evidence of traumatic brain injury in headbutting animals, but other experts aren’t convinced.

The roar of nearby boat engines alters how fish care for and protect their young, resulting in fewer successful nests and smaller offspring, a study finds.

Researchers observe that dolphins in a pod in the Red Sea regularly rub against certain corals and sponges, perhaps to sooth their skin by prompting the invertebrates to release mucus that contains antimicrobial compounds.