There is a wide variety of animals living on the Arctic seabed. Attached to rocks, they feed by removing nutrients from the water using filters or tentacles. But it can take decades for these colonies to become established, and they probably don't achieve their natural diversity until much later.
Research shows that females age more slowly and live longer when they have help raising their offspring. Researchers studied the relationship between ageing and offspring rearing patterns in the Seychelles warbler, and found that females who had assistance from other female helpers benefitted from a longer, healthier lifespan. The findings help explain why social species, such as humans, which live in groups and cooperate to raise offspring, often have longer lifespans.
The dramatic difference in gonad size between honey bee queens and their female workers in response to their distinct diets requires the switching on of a specific genetic program, according to a new study publishing March 21 in open-access journal PLOS Biology by Annika Roth and Martin Beye of Heinrich-Heine University in Dusseldorf and colleagues. The finding may aid analysis of the interplay of genes and nutrition that drive caste dimorphism in honey bees.
Americans are most comfortable when their indoor climate is like the northeast African outdoors -- warm and relatively dry.
The eggs of a parasitic ant queen living off a foreign species may end up as food for the larvae of the host species.
Coyotes expanded their range to colonize eastern North America over the last century, where their impacts on white-tailed deer populations are highly debated. In a Journal of Wildlife Management study, researchers conducted the first long-term, large scale assessment and documented no consistent decline in deer harvest numbers after coyote arrival.
Coyotes eat deer, but not enough to limit the deer population at a large scale. A new study of deer numbers across the eastern United States has found that the arrival and establishment of coyote predators has not caused the number of deer harvested by hunters to decline.
Two isolated mountain lion populations in southern California's Santa Ana and Santa Monica Mountains are at risk of local extinction, perhaps as soon as within 50 years, according to a study published in the journal Ecological Applications. The extinction risk is due to low genetic diversity and mortality that affects the stability of the population. But increasing connectivity could help.
People from North Africa are likely the main group that founded the indigenous population on the Canary Islands, arriving by 1000 CE, reports a new study by Rosa Fregel of Stanford University, USA and Universidad de La Laguna, Spain, and colleagues, published March 20, 2019, in the open-access journal PLOS ONE.
A new species of Surazomus, which belongs to the class Arachnida and the order Schizomida, has been discovered in the eastern Amazon, according to a study published March 20 in the open-access journal PLOS ONE by Gustavo Ruiz and Roberta Valente of the Universidade Federal do Pará in Brazil.