Aposematic coloration is best described as bright warning coloration that signals toxicity or danger to predators.

• A. Bright warning coloration that signals toxicity or danger to predators; example: the striped skunk's black-and-white pattern.
• B. Camouflage patterns that help conceal a mammal from predators.
• C. Coloration used to attract mates or signal reproductive readiness.
• D. Mimicry of toxic species without possessing toxins.

Answer: (A)

Aposematic coloration is a strategy where a prey species uses conspicuous colors or patterns to warn potential predators that it is dangerous or toxic. This works because predators learn to associate bright, high-contrast signals with a painful or harmful experience, so they avoid that pattern in the future. The striped skunk’s bold black-and-white pattern is a classic example, reinforcing the warning that its spray can deter attacks.

The other ideas describe different strategies: camouflage helps you hide rather than warn; coloration used to attract mates serves reproductive signaling rather than predator deterrence; and mimicry involves copying another species’ appearance, which isn’t about the defender itself signaling danger.