Why do goldfish change color?

Why do goldfish change color? Keep reading for more interesting information about answer of this awesome question.

Goldfish are a common household pet. Although less popular than dogs or cats, fish come in a close third because they are relatively easy to care for and don't require a lot of attention, space, exercise, or training.

Because they don't leave their aquarium, they don't create a mass of housework, and they are also allergy-friendly for people who can't have a hairy pet.

However, something unusual can happen to goldfish. Over time, you may notice a change of colour. The most common change in color is from gold to white, although other changes can occurs as well. Read on to learn what may be causing the change. This may be one of the most random facts about goldfish we've been aware of.

 

Goldfish were one of the first domesticated fish. However, they did not always have the bright orange and red scales that we are familiar with today.

Orange goldfish (Carassius auratus) were in fact bred for the color. Originally, they were an olive green like the fish shown on the left. | Source

Goldfish, like koi, are a type of carp. And just like wild carp, wild goldfish are usually olive green. Red, black, orange, white, yellow and brown goldfish have all been created through selective breeding.

Because of the selective breeding process as well as environmental factors, it's not uncommon for a goldfish to change colour. The change can be to a similar color, a different shade, or even a pattern.

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There are plenty of reasons that goldfish can change colour. Here are a few of them:

• Change in environment.
• Change in water type.
• Water temperature.
• Amount of light.
• Introduction of other fish or goldfish into the aquarium.
• Newborn transitioning into adult colouration.
• Old age.

Goldfish have pigment in their skin that reacts to light. When their skin is deprived of light or they have less exposure, this impacts on their skin. Over time, they can lose their colour and turn white.

Think of it this way: When people go outside a lot, they get a tan. If, instead, they stay inside, they become paler. Sunlight works in a similar way on goldfish.

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Facts about the Diet of a Giraffe

In the wild, giraffes primarily eat the leaves and twigs of acacia, mimosa, wild apricot trees and eat some fruit.

Giraffes live in habitats where the available food varies throughout the year. During the dry season, giraffes eat evergreen leaves, however, once the rainy season begins, they switch to new leaves and stems that sprout on deciduous trees. Also, twigs and branches are pulled into the mouth of the giraffe with their long and dextrous tongues. In the wild giraffes can eat up to 66 kilograms of food daily.

Funny pics of Giraffes

When there is a choice, male, female, baby giraffe feed in different ways. Males concentrate on leaves from the highest branches, while the females arch their necks to eat closer to the ground. Because of this characteristic behaviour, a giraffe can be identified as either male or female from a long distance away simply by its stance while eating. Male giraffes are also more inclined to wander into dense woodland, a habitat that females generally avoid.

Giraffes drink large quantities of water and as a result, they can spend long periods of time in dry, arid areas. When searching for more food they will venture into areas with denser foliage. The giraffe has tough lips to ensure there is no damage to their mouths when chewing at trees and twigs such as thorns.

Giraffes in captivity are generally fed on alfalfa hay and pellets, apples, carrots, bananas and browse (elm and alder are favourites).

Source factoflife

Jawless Fish Fun Facts for Kids

Interesting facts about Jawless Fish could you have known or unknown. Let’s learn about it offline.

Over 500 million years ago, the first fish evolved. Most of these early fish are now extinct, but a few remain – lampreys and hagfish. These fish look primitive, indeed. They have cartilage instead of bone and a long, eel-like body. They don’t have a jaw bone, but instead, a round, open mouth called an oral disc.

All About Jawless Fish: Sea Lampreys live in the ocean, as well as freshwater rivers and streams.

Fun Facts About Jawless Fish for Kids

Lampreys live in the ocean, as well as freshwater rivers and streams.

Lampreys start out as eggs and then larva. They live only a short time as adults. They lay eggs and then die.

Some lampreys are parasites. Their mouths have a strong power of suction like a vacuum. They attach themselves to other fish by their mouths. Then they bore into the fish with their teeth and suck the fish’s blood. Yuck!

Hagfish secrete mucous-like slime when threatened by a predator. This slime makes the predator gag and back off.

Hagfish look like eels, but they’re not. They belong to their own ancient family.

Hagfish eat dead animals. They use their sucking mouth parts to burrow into a carcass.

Hagfish are jawless fish. They look like eels, but they’re not. Read on for more all about jawless fish.