Author: Ramón Muñoz-Chápuli has been Professor of Animal Biology in the University of Málaga until his retirement. He has investigated for forty years in the fields of developmental biology and animal evolution. Toxoplasma gondii is a protozoan parasite of warm-blooded animals, including humans. After the acute phase of the infection, the parasite remains latent in […]
As you can imagine, a human intelligence test doesn’t really cut it for birds. It isn’t that easy to assess how an animal perceives information from the environment, processes it and decides to act. But researchers have developed a range of clever experiments to find out more about their cognitive abilities. Do they recognise each […]
If you ask people to list the most intelligent animals, they’ll name a few usual suspects. Chimpanzees, dolphins and elephants are often mentioned, as are crows, dogs and occasionally pigs. Horses don’t usually get a look in. So it might come as a surprise that horses possess an unusual skill, widely considered an indicator of […]
Ladybugs are beautiful beetles and many present what is called an aposematic coloration, bright and striking colors that warn: do not eat me, I am dangerous. When they are disturbed, they defend themselves with legs and jaws, expel a poison and their brightly colored elytra with black dots are a warning to anyone who tries […]
Forming large groups (flocks, banks, swarms, herds, schools, …) is characteristic of many species. The generally accepted idea is that it is an adaptive process, in which the individual improves its chances of survival by being part of a numerous group. A shark does not know which fish to attack in a sardine bank and […]
Science often advances through improvements in our ability to measure and observe. Just take the example of migrating storks. In the beginning, the Egyptians had a mystery: storks appeared in Africa during winter and disappeared in the summer. As explorers travelled the world, they saw the storks pop up in middle Europe during the summer […]
Predation is a biological interaction between a hunting organism, the predator, and another organism that is hunted, the prey. Predators may hunt actively for prey in pursuit predation, or sit and wait for prey as in ambush predators. In all cases, it is a complex behavior requiring honed skills and perfect and fast coordination among […]
Men have been drowning their love sorrows in alcohol since the dawn of times. What probably none of those lonely broken-hearted drinkers might have imagined, is that their despair would serve as inspiration for an interesting research involving sex, alcohol and flies. As the story goes, a group of researchers at the University of California […]
Slime mold is an informal name given to several kinds of unrelated eukaryotic organisms that can live freely as single cells but when food is in short supply, many of these unicellular organisms will congregate to form multicellular structures that move together as a single body. Thus, the aggregation and joint movement require the coordination […]
Brood parasites are organisms that rely on others to raise their young. The strategy appears among fishes, birds and insects, including some species of ants. Slave-making ants capture brood from other ant species to increase the worker force of their colony through regular, destructive raids that frequently finish with the killing of many workers and […]