Did you know that not only does organism's body have a biological clock that can tell the time of the day, it can also tell the time of the year? Now, researchers from Japan have found that one ...

Here’s what you’ll learn when reading this story: Chondrichthyan fishes—a group that includes rays, skates, chimaeras, and sharks—are thought to have energy intensive reproduction cycles due in no ...

Life depends on genes being switched on and off at exactly the right time. Even the simplest living organisms do this, but usually over short distances across the DNA sequence, with the on/off switch ...

Researchers have found that photoperiod variation in bean bugs is regulated by genes involved in maintaining circadian rhythm via the neurotransmitter glutamate. The discovery of this mechanistic link ...

Surprising animal behaviors, from birds to amphibians, are revealing deep biological processes. Scientists are uncovering how viruses manipulate cells, how the immune system balances defense, and how ...

The energy invested in animal reproduction is as much as 10 times greater than previously estimated when the metabolic load of bearing and caring for offspring is accounted for, according to a new ...