In 2014, during a visit to a remote part of the Yucatán Peninsula in Mexico, an ornithologist came across parrots with a completely different color pattern from other known species. A new study names these birds as a new species based on its distinctive shape, color pattern, call and behavior.
The evolution of the amniotic egg -- complete with membrane and shell -- was key to vertebrates leaving the oceans and colonizing the land and air but how bird eggs evolved into so many different shapes and sizes has long been a mystery. Now, an international team of scientists took a quantitative approach to that […]
At least 1.4 million seagulls feed at landfills in North America. Aside from the nuisance they pose, a study finds their nutrient-rich feces may threaten the health of nearby waters. The study estimates North American gulls deposit 240 tons of nitrogen and 39 tons of phosphorus into nearby lakes and reservoirs each year, fertilizing algae […]