New Sex Chromosomes Created After Decades Long Experiment Hybrid swordtail fish may reveal secrets about how new chromosomes and species form

Sexually reproducing animals have their sex determined through many mechanisms. Sex in reptiles such as alligators is determined by egg temperature during incubation. Some species, like the clownfish, can be hermaphroditic, shifting from one gender to another depending on the environmental READ MORE

Where Have All the Passenger Pigeons Gone? Researchers may have uncovered how the once numerous bird went extinct in only 100 years

Up to about 200 years ago, the passenger pigeon was one of the most numerous vertebrate animals on Earth. The species had an estimated 3 to 5 billion individuals at the peak of its existence and had such big flock READ MORE

The Genetic Origins of the Water Bear, Earth’s Most Resilient Organism What are the genetic mechanisms that allow tardigrades to survive such extreme conditions?

No living organism can survive in the dead of space, right? The unlikely exception: water bears. Also known by their scientific name, tardigrades, water bears are incredibly resilient microscopic aquatic animals. There are over 1000 species of the animal, and READ MORE

Pollution from Traffic Can Cause DNA Damage in Children Researchers compared the length of telomeres over the course of a year to see if they shortened with exposure to pollution.

Cars are everywhere. They are essential for our day to day lives, but these vehicles are a double-edged-sword. Cars emit exhaust gases, and those gases contain hydrocarbons. These molecules, as their name suggests, contain both carbon and hydrogen atoms. Hydrocarbons READ MORE