Quirky animal stories are big fun, but three in a month is a new record for me.
The most recent one, hot off the presses in C&EN’s Environmental SCENE, looks at how arctic seabirds provide a convenient way to track persistent pollutants in marine environments.The researchers measure the chemicals in stomach oils, a concentrate of fish oils from their food that collect in an upper part of their stomach. Chicks are exposed to higher levels of pollutants when they’re fed stomach oils than from whole fish or crustaceans. Fun factoid: the smelly mess is super-easy to collect because the birds also spew it on intruders. Yes, that includes your friendly neighborhood field scientist.
First, a look at unusual beluga whale behavior: except for during mating season, male whales at a Canadian aquarium prefer to hump other males rather than females. Is this hanky-panky an assertion of dominance? A form of play? In the wild, male whales tend to live in groups on their own for most of the year and under the Arctic ice.
Finally, a new chapter in the story of duck penises: Male ducks have unusual, spiraling penises that grow for mating season. Now, researchers have shown in two different species that social competition shapes either how long a duck’s penis will grow or how long it will stay elongated. It’s as if the ducks walked into a quacking singles bar and their sexual prowess changed based on the other guys in the room.