It's A Slug's Game
Very Interesting|May/June 2021
Sea slugs sport some of nature’s most unreal adaptations, including solar-powered skin and disposable penises. Welcome to their weird world…
Dr Helen Scales
It's A Slug's Game

The term ‘sea slug’ is applied to an assorted and flamboyant bunch of molluscs, all close relatives of snails that evolved a shell-free adult life. They are found almost anywhere in the sea, from rock pools to the deep sea, in tropical and temperate waters, and even in the Arctic and Antarctica.

SOLAR POWERED SEA SLUG

It looks like a tiny, cartoon sheep, but this is in fact one of more than 4,700 known species of sea slug that creep and occasionally swim through the ocean. Known as the leaf sheep (Costasiella kuroshimae), this sea slug lives around coral reefs, where it grazes on clumps of algae. The green colouration comes directly from its food – a leaf sheep retains the algae’s chloroplasts (tiny cellular structures that harness the sun’s energy to make sugars), and incorporates them into its skin, where they continue to photosynthesise. This trick of stealing chloroplasts, called ‘kleptoplasty’, stops the leaf sheep from starving when there’s no food around. It’s one of a range of weird and unique survival techniques that sea slugs have evolved.

WHEN SLUGS HUG

Esta historia es de la edición May/June 2021 de Very Interesting.

Comience su prueba gratuita de Magzter GOLD de 7 días para acceder a miles de historias premium seleccionadas y a más de 9,000 revistas y periódicos.

Esta historia es de la edición May/June 2021 de Very Interesting.

Comience su prueba gratuita de Magzter GOLD de 7 días para acceder a miles de historias premium seleccionadas y a más de 9,000 revistas y periódicos.

MÁS HISTORIAS DE VERY INTERESTINGVer todo
TAKE IT SLOW
Very Interesting

TAKE IT SLOW

Slow running is a fitness trend with some hard and fast science behind it

time-read
3 minutos  |
July/August 2024
Physics, AI and music share a common thread. You just have to know where to look
Very Interesting

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

time-read
3 minutos  |
July/August 2024
BED BUGS VS THE WORLD
Very Interesting

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

time-read
10 minutos  |
July/August 2024
Kids are the key to understanding obesity. But we need more of their genes...
Very Interesting

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

time-read
3 minutos  |
July/August 2024
COVID inquiry: What did we learn and what can we do better in future pandemics?
Very Interesting

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?

time-read
3 minutos  |
July/August 2024
One hormone could be the key that unlocks a cure for morning sickness
Very Interesting

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

time-read
3 minutos  |
July/August 2024
THE WORLD'S WEIRDEST CREATURES
Very Interesting

THE WORLD'S WEIRDEST CREATURES

Under the sea and upon the land, some animals look - to us - pretty strange...

time-read
8 minutos  |
July/August 2024
WHEN MIND AND MACHINE COLLIDE
Very Interesting

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...

time-read
10 minutos  |
July/August 2024
COME OUT OF YOUR SHELL
Very Interesting

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?

time-read
8 minutos  |
July/August 2024
SPACE ODDITIES
Very Interesting

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

time-read
6 minutos  |
July/August 2024