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
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118
Extinction risk for some species could be drastically underestimated because most demographic models of animal populations only analyse the number and fertility of females, dismissing male data as 'noise'.
Plants & Animals
Jun 21, 2017
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223
Females in inbred populations become more promiscuous in order to screen out sperm from genetically incompatible males, according to new study by the University of East Anglia.
Plants & Animals
Sep 22, 2011
6
0
In nature, male attempts to mate with females can be so extreme that they can harm the females. Such negative impacts of mating interactions have been suggested to promote the emergence of new species under some circumstances. ...
Plants & Animals
Mar 21, 2019
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123
Single-sex prawns could help alleviate poverty, reduce disease and protect the environment, according to researchers at Ben-Gurion University of the Negev (BGU) who have developed a monosex prawn that may make this winning ...
Ecology
Sep 4, 2019
0
273
(PhysOrg.com) -- Male stick insects are becoming increasingly redundant, with new research showing some New Zealand female stick insects can reproduce as efficiently on their own as with a male mate.
Plants & Animals
Mar 24, 2010
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0
While much of the shark focus is centered on great whites along Cape Cod this time of year, another shark species has been making waves in recent years off of Nantucket.
Plants & Animals
Aug 7, 2023
0
10
(PhysOrg.com) -- University of Florida researchers, in collaboration with the U.S. Department of Agriculture, report that a single dose of an immunocontraceptive vaccine controls fertility over multiple years in adult female ...
Plants & Animals
Sep 30, 2011
0
0
Four endangered mountain gorillas, including three adult females, have been killed by an apparent lightning strike in a Ugandan national park, a conservation group has said.
Ecology
Feb 9, 2020
0
24
An international study involving 54 countries has found that Australia has higher business start-up rates than any other developed country except the USA.
Economics & Business
Sep 21, 2012
0
0
