nature

This is the first time in history that this disease has been found in chimpanzees. Scientists are puzzled.

A slow journey in the dead of night through the forests of northwestern Costa Rica helped focus the target. Dr. Mirjam Knörnschild and her colleagues had a computer with a microphone attached to the top of their car to take recordings of bats.

It is the rarest animal in the world: it lays eggs, it has a duck's bill but it is a mammal. Now they have discovered another unusual feature

The worker ants are able to sniff out the more fertile queen ants (which have stronger odors) making them less likely to be executed.

Algae and phytoplankton are the basis of aquatic food webs. They are the food of primary consumers, such as small fish and crustaceans. Primary consumers, in turn, are eaten by larger fish, such as sharks or baleen whales.

Do you want to know the photographs selected in the prestigious IPA awards? This year more than 13,000 photos have been submitted.

You will have to put in a filtration system to keep your fish happy and healthy. You should also place an aerator in the pond so that the water keeps moving at all times.

From the Amazon rainforests to the perpetual snows of Patagonia, passing through some of the highest volcanoes on the planet. Do not miss this selection of images of the most fascinating corners of the American Southern Cone.