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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Giraffes can live for about 25 years in the wild.

Giraffes can live for about 25 years in the wild, is that true? Here in this article, we will answer you this animal facts and give some funny images to make it funnier for your reading.

Likelihood of Living to Adulthood

In most cases, giraffes are very social animals. A herd of about 40 giraffes is mostly composed of females and calves with several bulls, or male giraffes mixed in. The young male giraffes move together with the older males and are more solitary and love to live alone.

While in captivity, a giraffe can live for about 28 years or even longer. Many giraffes do not make it into adulthood because more than half of all calves are killed by hyenas, lions, and other predators within the first year after birth.

Protective Features

Giraffes have different features that help them stay safe from predators. For one thing, they are fast, tall, and very strong. This means that it does not have many enemies. The major predators of the giraffe are hyenas, Nile crocodiles, and lions.

With the help of its speed, a baby giraffe is able to get away from such predators. A giraffe can run close to 30 mph and this makes it easier to escape its enemies. However, the giraffe can only keep up with this speed for a short distance. Once it gets tired, a lion can try to knock it down by taking out its long legs.

Another great feature that helps the giraffe survive in the wild is its long neck. The long neck provides the giraffe with a good view of the terrain and therefore it can spot lions and hyenas at a distance. The giraffe is also very powerful. With just one swift kick, it can crush the spine or skull of any attacking lion.

Risk of Endangerment

Although giraffes may seem as though they are at a low risk of becoming endangered, some species are shrinking in number. The Uganda giraffes, for example, are becoming smaller in number. Only 445 giraffes live in the wild. This is because they are hunted for meat and habitat destruction is also becoming a threat.

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

Aven Colony Beta

Get some news about upcoming video games

Mothership Entertainment‘s recently announced city building and management sim Aven Colony is now in the Beta phase, and interested gamers can purchase the title on itch.io.

Right now, Mothership Entertainment has priced Aven Colony‘s Beta at US$ 24.99, but their website states that the full game will be launched at a higher pricepoint in 2017, on both Steam and itch.io. Please note that buying the current beta will NOT grant access to Steam keys.

The developers have also outlined a list of things that aren’t part of the beta release:

• We have 5 campaign missions available out of the 10 we expect to have when we launch in 2017.
• We have 5 sandbox missions available out of the 10 we expect to have when we launch in 2017.
• Plague spores aren’t in the game yet.
• We’ll add more buildings during the beta. We already have art almost finished for a lightning tower and a defensive turret but they aren’t in the game yet.
• We’ll be improving performance further during the beta.

We’ll be tweaking and tuning almost everything during the beta, so this means we’ll be making particularly large changes to things like:

• social policies
• research formulas
• user interface
• the various colonist morale factors
• mission setup and the various mission objectives
• enhancers and the addiction / withdrawal game mechanic
• how much buildings cost to build and what they do

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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.

Sea Anemone Proteins Could Help Fix Damaged Hearing

When it comes to creatures with keen hearing ability, sea anemones are not at the top of the list. Nonetheless, new research suggests that certain proteins that help these animals repair their feathery tentacles could also eventually be used to help repair damage to cells within a mammal's inner ear.

The finding comes from a study done in mice and could be an early step toward finding a treatment for people with hearing loss, the researchers said.

In mammals, including humans, sound is translated from vibrations in the air into nerve signals that can be sent to the brain by highly specialized cells called hair cells. These are found within the cochlea, a fluid-filled structure of the inner ear. Damage to these hair cells, which can be caused by exposure to loud noise, can result in hearing loss, and mammals are not able to repair hair cells once they are harmed. [Marine Marvels: Spectacular Photos of Sea Creatures]

It turns out that sea anemones have similar hair cells on their tentacles, which the animals use to sense ocean vibrations and approaching predators, according to a statement from the Journal of Experimental Biology, which published the new study on Aug. 3.

Previous research showed that after anemones reproduce — which they do by tearing themselves in half — they repair their tentacles, and their hair cells, using repair proteins in the mucus that coats the creatures' bodies, according the statement.

"It occurred to me that if any animal could recover from damage to its hair bundles, anemones would be the ones," study author Glen Watson, a biology professor at the University of Louisiana at Lafayette, said in the statement.

Watson and his colleagues identified a group of secreted proteins that allowed the anemone hair cells to recover, and wondered if those same proteins could also repair damaged hair cells from a mouse's ear, Watson said. [7 Medical Myths Even Doctors Believe]

To investigate this, the researchers first removed the cochleas from mice, and treated the organs with a solution that damaged the hair cells. Specifically, the solution damaged the tiny, hair-like structures called stereocilia on the surfaces of those cells in the way that loud noise would.

Next, the researchers treated the cochleas with a solution of repair proteins isolated from starlet sea anemones that had damaged tentacle hair cells. Results showed that the mouse stereocilia "recovered significantly," the statement said. 

Mice have proteins that are related to the sea-anemone repair proteins, the researchers found. They hypothesized that in the future, it might be possible to harness those proteins to repair mammalian hair cells.

However, much more research is needed first, to see whether the proteins work the same way in people, "putting this sort of therapy years into the future," Watson told Live Science.