They use there skin
No
by communicating an d camouflage
They camouflage by there grey darkish color blend in with the ground surface in the deep ocean........
Killer whales, also known as orcas, have a distinctive black and white pattern that is a type of camouflage called "disruptive coloration". Disruptive coloration is where an animal's color pattern contradicts its body shape. This helps killer whales because in the flickering/filtered light under the sea, other animals may not recognize it as a potential predator.
The color of whales in their natural habitat serves as a form of camouflage, helping them blend in with their surroundings and evade predators. It also plays a role in regulating their body temperature and may be used for communication and social signaling among individuals of the same species.
camouflage
no they do not
no shark do not camouflage
Camouflage
Many insects use camouflage. Name one of the laws of camouflage.
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Sloths camouflage by there fur