... supply. It’s another to find out that all across the country, male fish swimming in some of that water are becoming “intersex ... turned out to be intersex, but at some sites 91 percent of the male largemouth bass were affected. Biologist Jo ...
Male fish that nibble parasites off larger fish punish females of the species when they bite and drive off the bigger fish.
(PhysOrg.com) -- Male fish are so stubborn that they refuse to ask for directions, especially when they are ready to reproduce.
Researchers report that the wormlike yellow band in the tail of some male fish distracts pregnant females from their foraging activities and causes them to lose weight.
Small male fish living in central Australia's deserts are more aggressive than their larger counterparts, research has found, possibly in an attempt to scare off competitors without a fight.
... new level: Pregnancy. Although it is common for male fish to play the dominant parenting role ... regular fish eggs and they developed in the bag instead of on the sea floor,” Jones said. “But the male pregnancy ...
... to copy other males' mate choices, the researchers noted. " I find it particularly interesting that fish ... , they repeated the experiment, this time including an "audience male" in half of the encounters. Those onlookers could watch, but they couldn ...
New findings suggests that male Atlantic mollies try to deceive rivals by steering them away from their preferred mates.
Though skin cancer is deadly to male fish, it also has one perk: The black melanoma splotches arise ... freshwater fish native to North and Central America, and found that two of them preferred males whose ...
... a 3-inch, three-spined female fish into a fish tank, and waited. She sat perfectly still as she watched a male fish swim out slowly from its nest, beneath ...
MONTREAL, Sept. 18 (UPI) -- The St. Lawrence River near Montreal has alarmingly high levels of estrogen that is mutating male fish, University of Montreal researchers said.
... and are typically larger in males," said Fine, a professor in the VCU Department of Biology. Many fish use an organ known ... was larger in females, which was quite surprising since male fish are usually more vocal than females, said Fine ...
Earth’s warming could have troublesome impacts on reptiles because their gender is determined by temperature.
... ), and chemicals that mimic estrogens, are leading to ‘feminisation’ of male fish. Found in some industrial chemicals and the contraceptive pill ... breeding capability and in some cases can lead to male fish changing sex. Other studies have also suggested that there may be a link ...
Ancient male fish may have had a long, articulated organ for mating.
