Fiddler crabs see the polarisation of light and this gives them the edge when it comes to spotting potentials threats, such as a rival crab or a predator. Now researchers at the University of Bristol have begun to unravel ...
Plants & Animals
Aug 21, 2019
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69
Crabs are unique and continuously evolving animals, often moving their lifestyles out of marine environments for other environments to do so. The most popular food species can be fully marine (snow crab) or estuarine (Maryland ...
Evolution
Nov 6, 2023
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217
Dr. David Johnson, an ecologist at William & Mary's Virginia Institute of Marine Science, has spent more than 20 years in salt marshes, at sites all along the U.S. East and Gulf coasts. But while doing research in a Virginia ...
Plants & Animals
Aug 16, 2022
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550
Female fiddler crabs are sensitive to changes in the speed of a male's courtship display, significantly preferring displays that accelerate to those that are performed at a constant speed or slow down.
Plants & Animals
Jan 16, 2018
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54
(Phys.org)—A trio of researchers with Anglia Ruskin University in the U.K. and the Australian National University has found that the male fiddler crab uses its oversized claw to get the attention of a prospective mate and ...
Crabs that invade smaller crab species' habitat overpower and evict incumbents from their burrows, but the two species ultimately co-exist and join forces against other invading crabs in a game of thrones once they establish ...
Plants & Animals
Jan 25, 2017
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12
New research has resolved a mystery over why female fiddler crabs visit and leave many males during mating season, and found the females aren't just being picky.
Plants & Animals
Aug 30, 2016
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253
While male banana fiddler crabs (Uca mjoebergi) in Australia typically court females, some may coerce mating by waiting for females to enter their burrows and then trapping them there, according a study published June 15, ...
Plants & Animals
Jun 15, 2016
1
256
The vibrations and pulses that male fiddler crabs produce when they are trying to lure females into their burrows to mate are surprisingly informative. These signals serve as a type of "Morse code" that the females decipher ...
Plants & Animals
May 31, 2016
1
21
Fiddler crabs use polarization vision to sense the approach of rivals, scientists at the University of Bristol have found. The research, carried out in Panama, is the first field-based evidence that animals use polarization ...
Plants & Animals
Nov 20, 2015
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23
