No brain, heart or bones!

Jellyfish have no brain, heart, bones or eyes. They are made up of a smooth, bag-like body and tentacles armed with tiny, stinging cells. These incredible invertebrates use their stinging tentacles to stun or paralyse the prey before gobbling it up.


Sting not!

Jellyfish stings can be painful to humans and, from certain species, they can even be deadly. Although these magnificent marine creatures don’t purposely attack humans, most stings occur when people accidentally touch a jellyfish.


Multipurpose mouth

The jellyfish’s mouth is found in the centre of its body. From this small opening it both eats and discards waste. And it serves another purpose, too – by squirting a jet of water from its mouth, the jellyfish can propel forward!


Fast food

Jellyfish digest their food, which consists of fish, shrimp, crabs and tiny plants, very quickly. If they didn’t, they wouldn’t be able to float, being weighed down by the large, undigested grub in their body.

Published in Dawn, Young World, September 21st, 2019

Opinion

Editorial

Out of control
Updated 19 Feb, 2025

Out of control

AS bodies continue to fall in Kurram despite a state-sanctioned ceasefire, one wonders how long local militants’...
Hollow words
19 Feb, 2025

Hollow words

IT is not uncommon for politicians to resort to the use of hyperbole in order to boost their public standing. ...
Migration matters
19 Feb, 2025

Migration matters

THE grass, it seems, did appear greener on the other side to millions of people as evidenced by the latest UN ...
Cholistan project
Updated 18 Feb, 2025

Cholistan project

GPI goals align with Pakistan's broader economic aims but the manner in which the initiative was launched raises questions.
Right to know
18 Feb, 2025

Right to know

IT is an unfortunate paradox that while on paper Pakistan has some of the most impressive right to information laws,...
Dam dispute
18 Feb, 2025

Dam dispute

THE situation in Chilas needs attention and a fair-minded approach so that it can be resolved amicably. Diamer ...