For female common yellowthroats, beauty isn't just skin—or features—deep. New research provides evidence that large or showy physical features of males attract females because they signal high-quality male genes, such ...
Plants & Animals
Feb 14, 2022
0
174
For more than 20 years, a research team at Lund University in Sweden has studied the common bluetail damselfly. Females occur in three different color forms—one with a male-like appearance, something that protects them ...
Evolution
Nov 17, 2023
0
101
In the Pacific Northwest and British Columbia, scientists have been sounding the alarm about the plight of southern resident orcas. Annual counts show that population numbers, already precarious, have fallen back to mid-1970s ...
Plants & Animals
Mar 10, 2023
0
118
Countries hosting the Olympic Games do not tend win more medals when socioeconomic factors are controlled for, reports a study published in Scientific Reports. The findings dispute the existence of the so-called "host effect"—where ...
Social Sciences
Feb 2, 2023
0
9
A new study by University of Alberta researchers shows a link between horn size and female reproductive fitness in bighorn sheep—a potential conservation issue that may stem from trophy hunting of male bighorn sheep with ...
Plants & Animals
Sep 22, 2022
1
90
A few males are enough to fertilize all the females. The number of males therefore has little bearing on a population's growth. However, they are important for purging bad mutations from the population. This is shown by a ...
Evolution
Jun 28, 2021
0
16
In snowy plovers, females have overcome traditional family stereotypes. They often abandon the family to begin a clutch with a new partner whereas the males continue to care for their young until they are independent. An ...
Plants & Animals
Mar 11, 2021
1
74
The loss of flowering plants and the widespread use of pesticides could be a double punch to wild bee populations. In a new study, researchers at the University of California, Davis, found that the combined threats reduced ...
Plants & Animals
Oct 6, 2020
0
249
Humans eat a lot of fish, in some areas of the world making up an essential part of our diet. Fishing can sometimes deplete fish populations to the point where the fish have difficulty reproducing and growing their numbers ...
Ecology
Jan 14, 2020
0
77
In the world of squirrels, moving away from your home turf has better outcomes for males than for females, according to a new study by University of Alberta ecologists.
Plants & Animals
Dec 13, 2019
3
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