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Tag: "twilight" at biology news

Dinosaur hearing, listening to muscle noise, quieter cubicles

...t summer. Most of the vocalizations occurred from twilight to mid-morning. The fewest sounds occurred between the early evening and midnight. Following the paradigm that transients are most vocal when feeding, these results suggest that more feeding occurred at night when it is not possible to observe them v...

Ocean's 'twilight zone' may be a key to understanding climate change

...on dioxide from the air to the deep ocean. "The twilight zone is a critical link between the surface and th...ientists. "We're interested in what happens in the twilight zone, what sinks into it and what actually sinks out of it. Unless the carbon goes all the way down ...

Confidence in memory performance helps older adults remember

...ing that you can retain a good memory even in your twilight years is the first step to achieving that goal. Those who believe they can control their memory are more likely to employ mnemonic strategies that help keep memory fit despite the march of time. These are the conclusions of a new Brandeis study publi...

Getting an evolutionary handle on life after reproduction

...ve lifespan? For natural selection to shape the twilight years, postreproductive females should contribute to the fitness of their offspring or relatives, a hypothesis called the "grandmother effect." Though many mammals, including lions and baboons, rear dependent young and operate within complex social g...

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