Scientists have discovered that female fruit flies use specific frequencies in a male's mating song to assess his genetic quality and choose their mate. This research sheds light on the complex ways females choose mates, highlighting the importance of acoustic cues in sexual selection.
Female common bottlenose dolphins can rotate their body during copulation and shunt the penis into a blind alley of her vagina, preventing insemination.Pause for a moment and think about what you consider beautiful in the animal world: perhaps a peacock spider's fancy dance, vibrant hues on a mandrill's face, or the chittering chatter of a zebra finch song.For most animals, females use more energy in reproduction than males — not just in gestating their offspring but rearing it too.
Some species have evolved hidden ways to reject unwanted sperm in cases of forced copulation, a common practice in nature.In the most straightforward type of mate choice, "pre-copulatory traits" show off one's genetic offering. This, in turn, triggered nerve cells that opened the hard coverings over her reproductive tract, called her vaginal plates, and allowed the male to mount her.Sometimes, females simply don't get a choice in copulation. But some can still choose whether they carry offspring afterwards through anatomical female cryptic choice.It turns out that female ducks have "incredible vaginal elaborations", biologist Patricia Brennan of Mount Holyoke College in the US says.
Sexual Selection Mate Choice Fruit Flies Mating Song Genetic Quality
Australia Latest News, Australia Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
Ford Bronco Sport Sasquatch remains rugged forbidden fruit for Australia7NEWS brings you the latest local news from Australia and around the world. Stay up to date with all of the breaking sport, politics, entertainment, finance, weather and business headlines. Today's news, live updates & all the latest breaking stories from 7NEWS.
Read more »
Avocado plant producing giant fruit set to hit nursery shelvesA plant bearing a supersized new Australian avocado variety is tipped to be a sell-out, ahead of its first release to retail nurseries and home gardeners.
Read more »
Nigel Slater’s recipes for lemon and passion fruit choux, and lamb steaks, marsala, apricotsI wouldn’t normally weigh liquid measures, such as milk and eggs, but I have been encouraged to do so for choux pastry by Nicola Lamb’s baking bible, Sift. The resulting light, crisp shell of choux pastry is better than those I have made previously. Her recipe is now my go-to one for super-crisp eclairs and cream buns.
Read more »
Three in four Aussies on low incomes cutting back on meat, fruit and vegetablesFormer Adelaide security guard Lester says his bills have gone up but his government payments haven&x27;t.
Read more »
‘Targets are unrealistic’: sacked fruit picker tells of treatment on Kent farmKazakhstani man says he regrets coming to UK for seasonal work, but employer refutes account of his experience
Read more »
Mornington Peninsula solar farm will mix power with fruit and vegThe backers of an “agri-solar” project say they will be able to grow raspberries, mushrooms and finger limes while producing enough electricity to power about 1200 homes.
Read more »