How do animals sleep? A journey into their fascinating world of dreams

How do animals sleep? A journey into their fascinating world of dreams

Humans need to sleep a certain amount of hours every day, which can vary depending on the age: adults need an average of 7-8 hours per night. Sleep allows us recovering the energies we lost throughout the day, and makes our organism work better, favouring concentration and coordination. Sleeping habits vary from animal to animal: every

Traces of fracking fluid in drinking water in the U.S.

Traces of fracking fluid in drinking water in the U.S.

Tiny amounts of chemical substances were found in drinking water pouring from the taps of three homes in Pennsylvania, United States. According to a study conducted by the environmental scientists of the Pennsylvania State University, the cause should be ascribed to fracking (hydraulic fracturing) activities promoted by the U.S. Government. The paper was published in the

Eusébio, another indigenous leader killed in the Amazon

Eusébio, another indigenous leader killed in the Amazon

On 1 May 2015, the indigenous leader Eusébio, of the Ka’apor community, has been killed in an ambush in the Brazilian Amazon rainforest, by two hooded men that are thought to be illegal loggers.   Eusébio was shot in the back by two gunmen riding a motorbike. Though his companions sought help, Eusébio died two