If you fill a clear glass with lake water, chances are that the water has a slight yellow or brown color. The color is caused by dissolved organic carbon – a group of carbon compounds that wash into a lake from the soils around it when it rains or when snow melts. Dissolved organic carbon concentrations are increasing in lakes around the planet, in part because of climate change, but also due to other factors like reductions in acid rain. This causes the lake water to transition from relatively clear to a darker brown color.

The anemonefish is more familiarly known as the clownfish, as its bright colouration reminds of the face painting of a clown. The fish is familiar to the public at least on account of the animated film Finding Nemo with a clownfish as the main character. The striking and unique colouration consists of white stripes on an orange background, but its biological function has remained a mystery thus far. Now, a study by the researchers of the University of Turku and the University of Western Australia has revealed new information on the colouration of the clownfish. The study will be published in the Journal of Evolutionary Biology.

University of Saskatchewan researchers José Andrés and Andrés Posso-Terranova have discovered three new species of poisonous dart frogs — tiny and incredibly colourful animals that live deep in the Colombian jungle and appear to be already at risk of extinction.

University of Alberta neuroscientists have identified what may underlie intelligence in parrots, and potentially provide more insight into the neural basis of human intelligence.

It’s not usual to see a horse in the parking lot of the PEI Provincial Palliative Care Centre—except when Billy, the Norwegian Fjord horse, comes to visit.

OHSU scientists have discovered a naturally occurring disease in monkeys that mimics a deadly childhood neurodegenerative disorder in people – a finding that holds promise for developing new gene therapies to treat Batten disease.

A team of scientists from the University of Portsmouth have developed new scientific tests to better understand the effects of pollution on wildlife behaviour.

Ullas Karanth, a senior scientist with the Wildlife Conservation Society, is one of the world’s premier tiger experts and a leader in the effort to restore India’s depleted tiger populations. Raised in the South India state of Karnataka, he has spent much of his professional life studying and working to bring back tigers there, starting in Nagarahole National Park in the foothills of the Western Ghats, and then across a 10,000-square-mile region of that mountain range.

Scientists studying winter flocks of golden-crowned sparrows at the UC Santa Cruz Arboretum have discovered surprisingly complex social behavior in these small migratory birds. A new study reveals that the sparrows have different ways to assess dominance status depending on whether the interaction is with a familiar bird or a stranger.

Infections like Nipah virus and Ebola have begun to appear more rapidly among human populations over the past twenty years, but experts have yet to conclude why this may be the case.