Chameleon, Octopus, Seahorse, Goldenrod Crab Spider, Arctic [hare, fox, wolf, owl, weasel etc.]
a chameleon.Chameleon can change its colour
chmaileon
i don't think that you can change the colour of your shoes.
yes. some lizards can
Yes and that animal will probably die
A chameleon changes color to adapt to its surroundings and camouflage. May other animal do too but I think this is the most commonly known animal that changes color.
a chameleon, or many other things
The leaves change in color
If you are referring to why blood goes from bright red in the aorta to a darker reddish-purple in the pulmonary artery, the answer is because the blood has lost the majority of the oxygen it was carrying. This causes a conformation change in the carrier hemoglobin, which results in a color change. If you are referring to another color change in the blood (such as why a particular animal's blood is chocolate brown, for example), this would be due to a toxicosis and the animal should be taken to a vet immediately.
You don't. You earn money and get upgrades, that's all. :D
The animal you are referring to is likely the cuttlefish. Cuttlefish can rapidly change their skin color and texture to blend in with their surroundings, including sandy environments, as a form of camouflage. This ability helps them evade predators and ambush prey. Their chromatophores, specialized cells in their skin, allow for these dynamic color changes.
click on the picture of your animal in the bottom left corner. A menu showing your animal and a color pallet will pop up. Use the color pallet to change your color, eyes, and patterns. If you have any, you can also put on clothes from here.