Craspedacusta s Last Stand? Not likely, but now s the best time to see the Crim Jellies wm.edu - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from wm.edu Daily Mail and Mail on Sunday newspapers.
Calibration: Timothy Boycott readies a drone for an Acoustic Lighthouse calibration flight. The two colored balls are a meter apart. He flew the drone and worked the digitized position of the balls into software that worked out real distances of birds approaching the communications tower. Courtesy photo
Photo - of - by Joseph McClain | May 10, 2021
The Delmarva Peninsula, which includes Virginia’s Eastern Shore, is the avian version of a southbound interstate during the fall migration of raptors and songbirds.
“It’s a geographic area that sees an incredibly high abundance of birds moving through,” Timothy Boycott explains. “And these birds are moving southward along the Atlantic migratory flyway, headed as far south as the very tip of South America in some cases.”
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According to a recent study, baby starfish may appear lovable and innocent, but they re tiny little cannibals and feed on their own siblings for survival.
(Photo : Pixabay)
Behavior of Baby Starfish
Two scientists found this behavior among baby Forbes sea stars (Asterias forbesi) unexpectedly. Initially, they were trying to obtain knowledge on how baby sea stars behave when presented to ferocious crab predators in the lab.
Jon Allen, associate professor in William & Mary s Department of Biology, said in a statement: But they all begin to eat each other even before we initiated the crabs. So we had to do away with that experiment, Jon and his colleagues shifted gears to examine this previously secret phenomenon within the baby sea stars.
Baby sea stars eat their siblings in what is an unexpected case of underwater cannibalism, according to scientists who accidentally observed the behaviour.
Experts from William & Mary s Department of Biology were trying to see how baby sea stars would react when a crab was introduced to their tank, but they started eating each other before the predator was introduced.
Forbes sea stars are found on the East Coast of the US, the juveniles are about 1mm in diameter (0.04 inches) and adults can reach up to 5.9 inches in diameter.
To grow, the juveniles must eat, and the study authors found that young sea stars often turn on each other, with the larger creatures targeting their smaller siblings.