Fruit bats are not 'blind as a bat'
...s cannot fly and stay hungry. Visual navigation at twilight and sometimes also during the daytime did not fit the older view that fruit bats only possess rods, the photoreceptors for night vision. This prompted Brigitte Mueller and Leo Peichl of the Max Planck Institute for Brain Research in Frankfurt/Main an...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
...bon 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 ...Microsurgery and Super Glue show how antennae aid moth navigation
... most active during low-light times of the day, at twilight or just before dawn. Like other insects, their antennae allow them to smell. But the researchers suspected the antennae also provided moths with the means to stay on the proper heading while in flight. To test the theory, Sane removed the long par...Extreme life, marine style highlights 2006 ocean census
... 400 m (higher than the Eiffel Tower) between the twilight or mesopelagic zone, about 500 m down, and the surface layer, where sunlight and photosynthesis prepare food. Proportion of protected coral reefs Analysts in the Census network concerned with the future of marine animal populations compiled the fir...Einstein researchers identify genetic variants that lend clues to living longer
...p strategies to ease the inevitable slide into our twilight years.......tive 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...