How many sexes are there? Two, right? Not if you’re a clam shrimp – then there are three, while other organisms have hundreds or even thousands of ‘mating types’. Such weird mating strategies evolve by chance, but can result in better odds of finding a match.
YOUR PLACE OR SLIME?
Physarum polycephalum, a common slime mould that lives on decaying leaves, spends most of its time clumped together. It’s basically a slimy, yellow bag, full of thousands of DNA-containing nuclei, that can crawl across a surface. The slime mould releases spores that become sex cells. In order to mate, two spores must meet and merge sex cells, which have different sexes or ‘mating types’ depending on which variants of certain genes they carry. Estimates of its number of mating types range from 13 to over 500.
THREE IS THE MAGIC NUMBER
この記事は Very Interesting の May - June 2018 版に掲載されています。
7 日間の Magzter GOLD 無料トライアルを開始して、何千もの厳選されたプレミアム ストーリー、9,000 以上の雑誌や新聞にアクセスしてください。
すでに購読者です ? サインイン
この記事は Very Interesting の May - June 2018 版に掲載されています。
7 日間の Magzter GOLD 無料トライアルを開始して、何千もの厳選されたプレミアム ストーリー、9,000 以上の雑誌や新聞にアクセスしてください。
すでに購読者です? サインイン
TAKE IT SLOW
Slow running is a fitness trend with some hard and fast science behind it
Physics, AI and music share a common thread. You just have to know where to look
Studying science can lead you in many directions and open doors to unexpected possibilities along the way
BED BUGS VS THE WORLD
When bloodthirsty bed bugs made headlines for infesting Paris Fashion Week in 2023, it shone a spotlight on a problem that's been making experts itch for decades: the arms race going on between bed bugs and humans
Kids are the key to understanding obesity. But we need more of their genes...
We can unravel the role that bodyweight plays in disease, but we need a bigger, more diverse, sample of genetic material to do so
COVID inquiry: What did we learn and what can we do better in future pandemics?
Masks, social distancing, lockdowns... how effective was the UK's response to the COVID-19 pandemic?
One hormone could be the key that unlocks a cure for morning sickness
The nausea and vomiting that, in extreme cases, can endanger mothers and babies might soon be just a memory
THE WORLD'S WEIRDEST CREATURES
Under the sea and upon the land, some animals look - to us - pretty strange...
WHEN MIND AND MACHINE COLLIDE
First, Elon Musk wanted to make electric cars ubiquitous, then he wanted to make space exploration a private enterprise. Now, with Neuralink, his newest venture, Musk hopes to merge humans and artificial intelligence. Turns out, it might not be such a crazy idea...
COME OUT OF YOUR SHELL
Social anxiety is more than just being shy. It's a phobia born out of our evolutionary past. But that raises a puzzling question: why do so many of us fear human interaction when we're supposed to be the most sociable species on the planet?
SPACE ODDITIES
Take a tour of the weirdest spots in the universe, where the 'normal' rules don't apply. Places that squeeze time, blow bubbles and even rain glass... sideways