These fish use females of related species to mate with, but the resulting offspring end up being all clones of the male.
Otherwise there wouldn’t be much else they could be able to do, unless you has something like a starfish that have seperate sexes and can also reproduce non sexually/eggless (like an entire new cloned individual regenerating from a torn arm). Hypothetically there could be a species that can reproduce through budding as well as have sexual organs, but for some reason female individuals of the species died off and now the remaining population is entirely male that rely exclusivly on budding to reproduce.
I GUESS
Animals that do that also produce eggs that get fertilize as the result of corpulation
New research, published in October in the Proceedings of the National Academy of Sciences, concluded that despite size discrepancy, there’s no functional difference between men’s and women’s brains. “Male” brains and “female” brains simply don’t exist. In fact, there’s significant overlap.
This study had 1400 people in it… Remember that sample size matters. remember this when someone tries to rebuke this with a study that has 80 participants. Be as scientifically literate as possible so that we can debunk this nonsense one step at a time.
Speaking at the British Science Festival, which is taking place in Swansea, she said: “There is no such thing as a male or female brain.
“There is no one aspect of the brain even which if a scientist looked at it they could tell whether it came from a man or a woman.
“We shouldn’t be talking about sex differences in the brain. The brain is a mosaic and every brain is different for every individual.
“Using our neuroscience resources to measure differences is actually a waste of time. It’s more interesting to see what makes individual brains different.”
Prof Rippon believes that studies claiming differences between males and females are due to cultural and environmental factors.
She said that women become “wired” for multi-tasking not because of anything innate, but because that is what society expects of them.
And Prof Rippon said that the segregation between girls and boys even occurs from a young age – with them being given different toys to play with and different books to read – and that could change the way in which their brains develop.
She told an audience at Swansea University that boys’ toys can often be more training-based while girls’ toys are more nurturing.
“I’d say to the scientific community, can we please stop talking about sex? Stop dividing your data into two categories, you are losing so much information,” Prof Rippon said.
“Not only are we feeding the ‘neuro-trash’ industry misunderstanding about what we do, but we are also feeding the inner wimp of people out there who believe that they can or can’t do something based on whether they are male or female.”
always reblog this
The timing of the high intensity marketing of fairy princess femininity and the extreme segregation of boy and girl toy lines was no coincidence. Susan Faludi wrote about it in a book called “Backlash”.
The researchers used
high-speed photography and an instrument called a Rheometer to analyze frog saliva under prey-capturing
conditions. The scientists think frog tongues could one day
help engineers design reversible soft adhesives that could work at high speeds.
People around the world use more than a trillion plastic bags every year. They’re made of a notoriously resilient kind of plastic called polyethylene that can take decades to break down.
But the humble wax worm may hold the key to biodegrading them.
It was an accidental discovery. Scientist and beekeeper Federica Bertocchini was frustrated to find that her beehives were infested with the caterpillar larvae of Galleria mellonella, commonly known as a wax worm.
Bertocchini, who works at the Institute of Biomedicine and Biotechnology of Cantabria in Spain, tells NPR that she was cleaning out the hive and put the worm-infested parts in a plastic bag.
But shortly afterward, she noticed that “they were all crawling around my place and the plastic bag was riddled with holes.”
Many chameleons, and panther chameleons in particular, have the remarkable ability to exhibit complex and rapid colour changes during social interactions such as male contests or courtship. It is generally interpreted that these changes are due to dispersion/aggregation of pigment-containing organelles within dermal chromatophores.
But, combining microscopy, photometric videography and photonic band-gap modelling, we show that chameleons shift colour through active tuning of a lattice of guanine nanocrystals within a superficial thick layer of dermal iridophores. In addition, we show that a deeper population of iridophores with larger crystals reflects a substantial proportion of sunlight especially in the near-infrared range.
The organization of iridophores into two superposed layers constitutes an evolutionary novelty for chameleons, which allows some species to combine efficient camouflage with spectacular display, while potentially providing passive thermal protection. –src
Animals, especially mammals, need oxygen to keep their bodies and brains humming along.
But leave it to the African naked mole-rat to buck that trend. The rodents are bizarre in just about every way. They’re hairless, ground-dwelling and cold-blooded despite being mammals. Now, scientists report in the journal Science that the animals are capable of surviving oxygen deprivation.
“They have evolved under such a different environment that it’s like studying an animal from another planet,” says Thomas Park, a neuroscientist at the University of Illinois at Chicago.
lovingdread 