Posts Tagged ‘reproduction’
Genetic ‘roulette’ gives tiny cells their sex
UC SANTA BARBARA (US) — A single-celled organism ends up with one of seven possible “mating types,” or sexes, in a process that scientists call “random.” Continue…
Wednesday, March 27, 2013 10:08 - 0 Comments
Science & Technology - Mar 11, 2013 16:16 - 0 Comments
Gene allows plants to flip-flop reproduction
MONASH U. (AUS) — Scientists have discovered a gene that regulates the transition between stages in land plants’ life cycles. (more…)
Science & Technology - Feb 25, 2013 17:56 - 0 Comments
Are chemicals shrinking otter penis bones?
CARDIFF U. (UK) — Despite a population increase, male otters show negative changes in their reproductive organs, according to a new report that asks if endocrine disruptors are to blame. (more…)
Top Stories - Feb 11, 2013 13:20 - 1 Comment
Queen ant mates once, stores sperm for 20 years
STANFORD (US) — The queen harvester ant can continue to produce new ants 20 to 30 years after a single mating. (more…)
Science & Technology - Feb 7, 2013 15:54 - 0 Comments
To save wild canids, start with a puppy
CORNELL (US) — Scientists report the western hemisphere’s first dog born from a frozen embryo, an advance that could help save endangered species. (more…)
Science & Technology - Feb 6, 2013 12:36 - 0 Comments
Goo lets momma turtles pick due date
MONASH (AUS) — To give their young the best chance of survival, female turtles have the unique ability to wait to lay their eggs on land when conditions are right. (more…)
Science & Technology - Jan 29, 2013 14:49 - 1 Comment
Fossils hold evidence of sexual selection
U. SOUTHAMPTON (UK) — Comparisons with living animals make it possible for scientists to detect sexual selection among creatures in the fossil record, say researchers. (more…)
Science & Technology - Jan 25, 2013 15:58 - 0 Comments
Break-ups are tough on mating owl monkeys
U. PENN (US) — Owl monkeys, considered a socially monogamous species, have fewer offspring when they are forced to switch mates, a new study reveals. (more…)
Science & Technology - Jan 25, 2013 10:32 - 0 Comments
Bat dad devotion depends on the roost
U. LEEDS (UK) — Male bats range from devoted fathers to independent bachelors along a 50 km stretch of the River Wharfe in Yorkshire, England. (more…)
Science & Technology - Jan 18, 2013 15:53 - 3 Comments
Cheating amoebae don’t pay the price
WASHINGTON U.-ST. LOUIS (US) — Scientists have found a gene that allows amoebae to pass on more than their fair share of their genes without compromising their overall fitness. (more…)
Health & Medicine - Jan 18, 2013 13:57 - 0 Comments
Bed of oatmeal proves sexy for penicillin fungus
U. NOTTINGHAM (UK) — Knowing what gets a seemingly asexual fungus turned on could lead to cheaper penicillin. (more…)
Health & Medicine - Dec 20, 2012 16:29 - 0 Comments
Male fertility linked to gender of siblings
U. SHEFFIELD (UK) / BROWN (US) — Scientists have found a correlation between the swimming speed of a man’s sperm and how many brothers he has. (more…)
Science & Technology - Dec 20, 2012 9:24 - 0 Comments
Whales ‘multi-task’ by crooning at dinner
DUKE/UC SANTA BARBARA (US) — In order to eat continuously but also find mates, humpback whales sing while they hunt, new research shows. (more…)
Earth & Environment - Dec 18, 2012 13:01 - 0 Comments
Injured coral just not in the mood
U. BUFFALO (US) — Four years after suffering tissue damage, coral colonies in the Bahamas were still producing low numbers of eggs, research shows. (more…)
Health & Medicine - Nov 14, 2012 11:41 - 0 Comments
Good swimmers? Why sperm length matters
BROWN (US) / U. SHEFFIELD (UK)— Men who have sperm that tend to vary in length—particularly in the tail—often have a lower concentration of sperm that can swim well, a possible sign of fertility trouble. (more…)
Science & Technology - Nov 9, 2012 12:15 - 2 Comments
No sex life leaves worms short on genes
U. MARYLAND (US) — Worms that reproduce without a mate have not only lost their mojo in the dating game of evolution, they’ve lost thousands of genes as a consequence. (more…)
Health & Medicine - Nov 2, 2012 14:36 - 1 Comment
After cancer, stem cells restore male fertility
U. PITTSBURGH (US) — After an injection of banked sperm-producing stem cells, male primates who become sterile due to cancer drug side effects were once again fertile. (more…)
Science & Technology - Oct 24, 2012 11:59 - 2 Comments
Botany goes Gaga for new fern genus
DUKE (US) — Scientists have named a new genus of ferns—19 species in all—for pop megastar Lady Gaga, and say that she and the ferns share unlikely similarities. (more…)
Health & Medicine - Oct 18, 2012 11:26 - 5 Comments
Weight loss doesn’t improve women’s fertility
PENN STATE (US) — Losing weight improves sexual function in women, but not their fertility, a new study shows. (more…)
