We know that boys and girls are produced in much the same frequency. But how—and why—is this 1:1 ratio achieved? A new paper searches huge human data sets for gene variants that throw the 1:1 sex ...

An Atlantic spotted mother dolphin observes her calf while foraging. She uses her unique signature whistle to call the baby back after he is finished. Back into Google’s laboratory, some researchers ...

The animal world is taking a page from the human one. Scientists studied the mating habits of humpback male dolphins for 10 years, and they found out that they give their female counterparts gifts of ...

Source: Shark Bay Research Program, used with permission. Species across the animal kingdom play, suggesting the behavior has benefits. Scientists have long hypothesized a link between juvenile social ...

Romance isn’t dead yet — at least not in waters off the western coast of Australia. Scientists have recently observed humpback male dolphins in the region presenting females with large marine sponges ...

A March 8 Facebook video (direct link, archive link) shows a shirtless man standing in front of a backyard grill. “Everything that you eat in meat products is a female,” he says. “That means you’re ...

Biological sex is usually described in simple binary terms: male or female. This works well for germ cells (sperm versus eggs), but for other body organs it is of little help. A new study by the Max ...

A fishing community in southern Brazil has an unusual ally: wild dolphins. Accounts of people and dolphins working together to hunt fish go back millennia, from the time of the Roman Empire near what ...

These marine mammals have a bad reputation online, but the truth behind their behavior might surprise you. Male bottlenose dolphins (pictured, animals in French Polynesia's Rangiroa Channel) ...

In this 2014 photo provided by Oregon State University, at Praia da Tesoura, in Laguna, fishers await for dolphins to signal the right moment to cast their nets. In the seaside city of Laguna, Brazil, ...