Here’s a short poem before we start:
Five Little Crayons
Five little crayons coloured a scene.
Yellow, blue, orange, red and green.
“Look,” said Yellow, “My sun is bright!”
Blue said, “Great! My river’s just right!”
Orange said, “Flowers! I’ll draw something new.”
Red said, “Great, I’ll add some, too!”
“Sigh,” said Green, “I’m tired of trees,
And grass and bushes and tiny leaves.
I think I’ll draw a big green cloud!”
“A big green cloud should be allowed!”
The crayons all smiled and didn’t think twice
A big green cloud sounded rather nice!
Pretty fun to sing isn’t it? And a wonderful sight it would be too. Especially in the wild.
Nature has her fair share of spectacularly beautiful animals and plants. Super colourful and oh-so-inviting, your only wish would be to touch the creature and feel it under your fingers. But do so and that may be the last thing you ever do.
If there’s one thing you need to remember about the wild, it’s that Colours = Poison.
Say hello to Aposematism
What do they call an animal that uses bright colours to ward-off danger? An aposematic animal of course. Aposematism is the biological process of using colours as signals to repel predators.
Animals brighten their skin pigments or even change their colours as warning to other animals not to cross their path. Plants, flowers, fungi and seeds use bright colours which indicate high levels of toxicity (which animals learn indicate ‘Don’t Eat’).
Aposematic animals & plants work in weird, but wonderful ways. While some are genuinely poisonous and use unique colours to their advantage, others are non-poisonous and mimic their more dangerous cousins to confuse and scare-off their predators, who otherwise may attack them.
But here you have below the list of 5 animals who really are poisonous and who use colour as a warning sign in the wild. Remember, they may look enchanting and you may want to touch them or pet them. But trust me, it’s better you stay away.
Now, without further ado, here are our top pics for pretty but potent animals in the wild:
1) Amazonian Poison Dart Frog
This one is most certainly the poster boy for ‘colorful but potent’ category in the wild (hence the feature image ;D)
Poison dart frogs are one of the most toxic creatures on land. Dart frogs don’t make their own poisons, but store the poison of the insects and smaller animals they eat. They then process these poisons and combine them to make a very potent toxin…something which can be severely painful for humans.
Local Amazonian tribes use the tree frog’s poison to coat their darts, which they use to hunt monkeys and birds. The most toxic of all Amazonian tree frogs is Phyllobates terribilis.
The Monarch Butterfly and the Pipevine Swallowtail store and use their prey’s toxin as a defence mechanism when they are older. Birds know they can be deadly to eat and avoid them. But other than a handful of these winged critters, most butterflies and moths aren’t poisonous. But the same can’t be said of their offspring.
Many caterpillars have a poisonous coating on their body, which protects them from being eaten by predators when they are young & helpless. While some poisons only knock the predator out for a few hours, others kill. A case in point is the formidable N’gwa or ‘Kaa caterpillar, which is found in Africa and whose toxin, according to researcher David Livingstone, which is a mixture of snake venom and plant toxin, has the capacity to kill an antelope.
3) Hooded Pitohui
Did you ever think a bird would be on this list?
The Hooded Pitohui, scientifically called Pitohui dichrous makes its home in the lush forests of New Guinea. The size of a dove, the Pitohui is the only documented poisonous bird in the world.
It’s toxin is a neurotoxin which numbs and paralyzes the victims. Luckily, this toxin isn’t fatal to humans, although the effects can take hours to wear-off. Sadly, the same isn’t true for its prey which are insects.
The Hooded Pitohui is part of a 3-species family, which also includes the Variable Pitohui and the Brown Pitohui, which are poisonous too, but not to the level of toxicity as their hooded cousin. The toxin has been found to be the outcome of the birds’ consumption of the choresine beetle. Such a nuisance is this bird to the surrounding tribes, it had been nicknamed Pitohui or ‘rubbish bird’ by the locals, which then was adopted as its official name.
Here’s an animal that can (and has) kill(ed) a human. Puffer fish are one of the most venomous animals on the planet and a single sting can bring down the mightiest of men. Often, human deaths occur when people unwittingly consume puffer fish organs in their meal. In animals though, its often a result of the puffer’s hunting or defence strategy.
The toxin the puffer fish contains is called Tetrodotoxin, which is a highly potent neurotoxin. The toxin slowly blocks all the neural transmitters in the body, essentially paralysing the victim, one organ at a time. At its peak, the Tetrodotoxin closes the wind pipe, slows down the lungs and stops the heart from working. Soon, the brain dies due to asphyxiation and lack of blood flow, killing the victim. Scientists believe Tetrodotoxin is 200 times more lethal than cyanide!
Want to know something even more unbelievable? The Japanese have a very special dish called Fugu which is made of puffer fish and is served during very special events. And guess what? Chefs deliberately leave a bit of the poison on the fish as an adrenaline-inducing treat for the guests.
5) Cone snails
They look harmless, inviting even. But pick one up and you’ll be stung faster than you can say ‘Oh no!’. Cone snails are another sea dweller that even humans need to beware of, if they don’t wish to be hurt or worse, dead.
Coming in a variety of shapes and sizes, cone snails contain a variety of neuro venoms (depending on the species) and can range in toxicity that’s akin to everything from a bee sting to a fatal hit. These snails shoot out harpoons, which are teeth-like organs which they use when hunting underwater. Any animal that has the misfortune of brushing against the cone snail will be the unfortunate recipient of the harpoon.
One species of cone snail that are extremely potent to humans is the Conus geographus or the Cigarette snail, whose toxin is said to be so quick-acting that victims have only time enough to smoke a small cigarette before dying.
Another gastropod that is poisonous – Nudibranch. You can read all about them here.
In the next article, we’ll focus on the Top 5 Most Colourful & Poisonous Plants and Fungi.
P.S: Featured Image: Poison Dart Frog