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At first glance, the fire salamander appears much as it always has: black skin broken by irregular yellow markings, a pattern long associated with the species' chemical defences. But under ultraviolet light, that familiar appearance changes.

In temperate forests, spring timing can determine whether newly hatched caterpillars find a feast or almost nothing to eat. Many herbivorous insects emerge around the time trees produce their first young leaves, when the foliage is soft and especially nutritious.

Seeing more Argentine ants after putting out pesticide bait may not mean the treatment has failed. A new University of California, Riverside, study found that the chemicals can change the ants' behaviour, with the response varying depending on the type of insecticide used.

For most people learning an instrument, there is a moment of quiet defeat: the song they love exists as a recording, but not as sheet music they can actually play, or the only arrangement they can find is written for someone far more advanced. Jingwei Zhao has spent the better part of a decade building artificial intelligence systems designed to make that moment obsolete.

Ancient paintings covering limestone cliffs in southern China may owe their remarkable survival to an unexpected ingredient known as 'blood.' A new study of the 'Huashan rock art' in Guangxi published in the 'Journal of Archaeological Science' suggests that the artists used a mixture containing lime, calcium phosphate and blood as a binder, helping the pigment form an unusually strong connection with the rock. The paintings, created more than 2,000 years ago, have endured in a hot, humid and rainy environment where natural weathering would normally be expected to damage exposed artwork.

An international team of marine scientists has discovered 31 new species in the ocean's vast midwater zone during an expedition in the tropical South Atlantic off the coast of Brazil. The two-week mission aboard Schmidt Ocean Institute's research vessel Falkor (too) brought together specialists who used underwater robotics, advanced imaging systems and genetic analysis to examine animals living between the sunlit surface and the seafloor.

Hawaii's native Hawaiian stilt, known as ae`o, has made a remarkable recovery after decades of population decline pushed the bird to roughly 200 individuals in the 1940s. Habitat loss, hunting and introduced predators had severely affected the long-legged wetland bird.

Chilean researchers have sequenced the full genome of Colobanthus quitensis, one of Antarctica's two native flowering plants. The genetic map could help scientists edit crops for cold, drought and ultraviolet stress.

The black-footed ferret is North America's rarest mammal, with only about 300 estimated to survive in the wild at the end of 2015. The species has been listed as endangered since 1967, and its survival is closely tied to prairie dogs, which provide almost all of its food as well as the burrow systems the ferrets use for shelter.

Just like everything else in the world, even food is coming to have its own trends. From a Mediterranean diet to a protein-rich diet, people are trying everything on the internet to be able to achieve their "ideal" body.