Male humpback whales ('Megaptera novaeangliae') from around the globe conquer their mates each year with a catchy new tune that spreads among the "singers" from the Australian shores eastward during the breeding season.
Most textbooks contain health-related messages. However, one in four is not based on any scientific evidence as "breathing through the nose instead of through the mouth prevents colds", according to research by the Hospital de Baza (Granada) published in the journal 'BMC Public Health'.
After several decades studying bears at the Kodiak National Wildlife Refuge in Alaska, a team of biologists led by Bill Leacock has concluded that singleness has become fashionable among brown bears in recent years.
Even elephants know that experience is a degree. A study carried out in the Amboseli National Park in Kenya shows that the oldest female elephants are considered the wisest of their peers, and that their leadership is an advantage for the group.
A new study carried out by the University of Bristol (United Kingdom) reveals that when hens see a chicken under stress, they show the physical and psychological symptoms of empathy, that is, the ability to feel affected and share the emotional state of another individual.
Scientists in the UK have just created the world's most powerful light microscope. While traditional light microscopes allow objects down to one micrometer to be seen clearly, the new instrument lowers the limit to 50 nanometers (0.00000005 m).
Researchers at the Joint Genome Institute in Walnut Creek (United States) have sequenced the genome of 'Aureococcus anophagefferens', a species of algae whose massive proliferation gives rise to harmful 'red tides' that alter the ecosystem. The work is published in the journal 'Proceduings of the National Academy of Sciences' (PNAS).
This is the question posed by marine biologist Aran Mooney, from the Woods Hole Oceanographic Institute (WHOI). To find out, he worked with squid of the 'Loligo pealei' species, which he placed, previously anesthetized, in tanks of water, and connected electrodes to them to detect the signals sent to the brain.
Danni Büchner is invited to Sam Dylan's Halloween party. But the "Goodbye Germany" emigrant has no desire for many other party guests. And find clear words.
