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By: Kevin Khitrov

Yellow Is For the Yellow Boxfish 

The World of Yellow Animals

Yellow Is For The Yellow Boxfish

Discovering The Worlds Perfectly Yellow Animals 

by Kevin Khitrov

Think you know Yellow ?

Think again...

Yellow Is For The Banana Slug 

The Ariolimax Banana slug is a slimy slug that looks like a banana with brown spots. The Banana slug doesn’t hunt for its food. Instead, it will just eat things that are on the forest floor. Looking like a small yellow banana, it’s easy for predators to attack it.  So the Banana slug learned to survive while searching for food without any camouflage.

The Banana slug makes poisonous toxin that can cause harm to other animals when attacked.  When the banana slug gets aggravated, it releases its toxic slime around its body.  To do so, they secrete a protective layer of mucus and insulate themselves with a layer of soil and leaves. If a predator were to taste the slug, their tongue would become numb. Slugs remain inactive in this state until the environment becomes moist again.  Interestingly, the slime also contains pheromones to attract other slugs for mating.

Have you ever thought of using slime as a weapon? 

Name: Banana slug 

Scientific name: Ariolimax Columbianus

 Size: 25-35 cm                                                                                                                                                                              

   Habitat: They are primarily found in California but range throughout the United States.  

Diet: They eat leaves, animal droppings, moss, and dead plant material. 

Predators and threats: Pacific Giant Salamanders and Northwestern Garter Snakes

Yellow Is For Blue-Ringed Octopus 

The Blue-Ringed Octopus is a small dark yellow octopus with blue rings that make it look like coral.  When swimming, the blue-ringed octopus changes to a darker color making it very difficult to spot. Swimming gracefully in ocean waters, the Blue-Ringed Octopus waits to find it’s meal. Those meals don’t come cheap as predators are everywhere.  If a predator spots the octopus and tries to attack, the octopus has only two options to defend itself.  

They are recognized as one of the world's most venomous marine animals.  When the blue-ringed octopus gets aggravated, blue rings on its body start to glow. If a predator were to attack, the octopus can swim away and hide, or it can release its toxic saliva that contains tetrodotoxin, which is a poisonous compound that could kill a human or a predator in seconds. If you were swimming and you happen to spot this creature, stay away and don’t touch. Just a single contact can kill a human. Even though they may seem like harmless octopuses that look like coral, don’t ever underestimate them.


Slime to the rescue, again

Name: Blue-Ringed Octopus

Scientific Name: Hapalochlaena

Size: (4mm-20cm)  

Habitat: Southern coast of Australia

In the reefs 

Diet: The blue-ringed octopus eats mostly crustaceans such as crabs and shrimp.

Predators and Threats: Out of the many predators that the blue-ringed octopus has, the Moray eel is its greatest predator.

Yellow Is for The Yellow Warbler 

 The Yellow Warbler is a small, golden yellow bird with rusty streaks on its chest. The Yellow Warbler can produce 1-6 eggs per season.  This makes them very territorial. Finding a mate is very difficult for these birds because they have a complicated mating process that could take about 1-4 days. They will do absolutely anything to find a mate.  

During mating season the warbler takes on a challenge to find a mate. Part of this problem is that male birds have to sing about 3000 different songs a day to attract a female. It may seem impossible, but the Yellow Warbler has proved us wrong. Just imagine singing that many songs a day only to find a mate, your vocal cords would be ruined. So if you happen to hear a light humming noise while you are strolling through the vast forests of Seattle suburbs, you might find yourself in the midst of mating games of the Yellow Warblers.

Sweet, sweet sound of love

Name: Yellow Warbler

Scientific Name: Setophaga petechia

Size: length 12-13 cm wingspan 16-20 cm weight 9-16 g


Habitat: throughout North America in low trees, swamps, leafy bogs

Diet: Insects and Berries

Predators and threats: raccoons, weasels, snakes, crows, and skunks.

Yellow Is For The Yellow Crab Spider 

Yellow Crab Spider has a golden yellow shade and eight legs. These unusual spiders blend into their environment very well. If you were to spot this spider, you would be very fortunate. These spiders have two main ways of protecting themselves. One way is their way of blending into the environment, and the other is their ability to pounce on any attacker they might encounter in the wild. When the spider is born, it will look like a mini adult Crab Spider.

When this Crab Spider gets hungry, it needs to find food. To attack its prey it changes color which is not usual for spiders to do. To protect itself it also changes colors.  When the spider attacks its prey, it will jump on them and release a toxin from their fangs.  This toxin can kill the animal in seconds.

Hungry, hungry spidy

Name: Yellow Crab Spider

Scientific Name: Misumena Vatia

Size: 3-9 mm

Habitat: In North America on daisies that range from purple to yellow


Diet: Honey Bees, butterflies, flies, and nectar


Predators and threats: No threats 

Yellow Is For The Teddy Bear Bee

Teddy Bear Bee is dark yellow with black stripes. This bee has a funny name, but it is hazardous. Teddy Bear Bee is very easy to spot in the wild, but you can’t have one as a pet. During the night, they are harder to detect. Watch out because these bees can sting you at any time.  

When these animals get upset like most other bees, they sting. But this string is not just a regular sting; this sting spot will become swollen. It is its defense mechanism. Most bees die when they sting something, but the Teddy Bear Bee doesn’t. If you ever see one you should stay away because  if you get close you will pay a painful price.

Sting and repeat.

Name: Teddy Bear Bee 

Scientific Name:  Amegilla Bombiformis

Size: About 15mm

Habitat: all states of Australia and build nests in trees, in groups

Diet: pollen and nectar

Predators and threats: no predators 


Yellow Is For The Yellow Boxfish

As the name suggests, it is box-shaped fish.  A Young  Yellow Boxfish, it's bright yellow in color. However, as it gets older, the brightness fades and very old fish will have blue-grey coloration with faded yellow.  Because of its unique shape, this Boxfish is popular in the pet industry for use in saltwater aquariums.  They are typically taken from their habitat and exported to other continents. Even though they seem so calm when swimming, they can be very dangerous. Males are very territorial, so if there were something that was bothering them in their territory, they would strike. 

The Yellow Boxfish is very powerful when attacking.  When stressed or injured it releases poisonous toxin from its skin that may prove fatal to any fish in the surrounding waters. The bright yellow color and black spots are a form of warning coloration to any potential predators.  Unfortunately, that cuteness and bright coloration are misleading to people who take these creatures as pets.  Yellow Boxfish may quickly consume the other fish in the aquariums. So it’s best to let them live and thrive in their natural habitats.

Looks can be deceiving

Name: Yellow Boxfish


Scientific Name: Ostracion Cubicus

Size: up to 45 cm 

Habitat:  marine waters of the Indo-West Pacific

Diet: algae, worms, crustaceans, mollusks, and small fish

Predators and threats: no threats 

Yellow Is For The Golden Poison Frog 

The Golden Poison Frog, also known as golden poison arrow frog is yellow with tiny black spots. They thrive in the rainforest with high rain rates.  Golden Poison Frog is  a social animal, living in groups of up to six individuals.  In the wild, these frogs are lethally toxic.  They are very easy to spot on the trees in the wild. These frogs cannot be pets because of how poisonous they are. 

The Golden Poison Frog is very poisonous. Its skin is coated with toxic slime that is 20 times more powerful than any dart frog. One milligram of poison can kill about 10,000 mice.  This poison prevents its victim's nerves from transmitting impulses, leaving the victim paralyzed.  This frog was ranked the most poisonous creature on earth.

Touch me and you die

Name: Golden Poison Frog


Scientific Name: Phyllobates Terribilis

Size: up to 5.08 cm


Habitat: Pacific coast of Columbia 

Diet: flies, ants, beetles, spiders, mites, caterpillars, and maggots

Predators and threats:  Terribilis snake 

Yellow Is For The Yellow Sea Cucumber 

The Yellow Sea Cucumber is cylindrical with five shallow longitudinal ribs, with thorns on the body.  It is found in shallow seas in tropical parts of the central Indo-Pacific region. The sea cucumber does not have to hunt for its food; it catches its food with its tentacles.  The sea cucumber has a mechanism to protect itself. When the sea cucumber gets angry, it will release a toxin that could kill all the fish in the area. 

This yellow animal is challenging to spot in the water. The yellow sea cucumber blends in exceptionally well in its coral environment. While in the water they're faced with too many threats because they swim slowly. But since they look like coral, they save themselves from most of the dangers out there, such as large fish. If you spot it, you can touch it, but please don’t hurt them.

Stop me if you can !

Name: Yellow Sea Cucumber 

Scientific name: Colochirus Robustus

Size: up to 7 cm

Habitat: Ranges between the Philippines and Indonesia


Diet: Plankton

Predators and threats: Small To medium fish  

Yellow Is For The Yellow Sea Anemone 

The Yellow Sea Anemone is mostly yellow with a hint of orange. When you are scuba diving or snorkeling you may mistake these for plants, but they are animals. An Anemone is a hiding place for most fish. However, it can hurt other fish that don’t have a protective coating that allows them to swim through the Yellow Anemone. This creature can be spotted on rocks or the ocean floor.

The Yellow Sea Anemone may look harmless, but it's not. What makes it so lethal is that its tentacles sting at the touch. It resembles a jellyfish. Most animals get hurt if they try to eat them. Some sea anemones are not dangerous, but this particular one is. If you want to collect these creatures that look like colorful plants, make sure that you are wearing gloves.

The Lethal Garden 

Name: Yellow Sea Anemone


Scientific Name: phylum Cnidaria

Habitat: tropical waters 

Size: up to 1.5 meters long 

Diet: plankton, mussels, fish, shrimp, other crustaceans

Predators and Threats: fish 

Yellow Is For The Goldsmith Beetle 

The Goldsmith Beetle is gold with a metallic tint. This beetle is easy to find during the day but hard at night, unless there is a bright light nearby.  They are attracted to light. Therefore, you can spot them buzzing around lights at night. They also can be spotted in groups because they can’t be by themselves.

It’s a rock, no it’s a tent, no it’s a beetle

The Goldsmith Beetle uses a unique way to sleep and protect themselves. They form tents to protect themselves with their wings. If you spot it, you can touch it, but please don’t hurt them. It is easy to mistake them for rocks when they are asleep. Adults usually hibernate during winter. 

Name: Goldsmith Beetle 

Scientific name: Cotalpa Lanigera

Habitat: Goldsmith Beetles live in deciduous forests, woodlands, and fields near those 


Size: 20-26 cm

Diet: wood 

Predators and threats: birds, including blue jays, yellow-billed cuckoo, and purple martins