Here are some examples of how animals can look different based on their sex:
Size:
* Male lions are typically larger and heavier than female lions.
* Male elephants have larger tusks than female elephants.
Coloration:
* Male peacocks have stunningly elaborate plumage with bright colors and eye-like patterns, while female peacocks have a much duller, brown coloration.
* Male cardinals are a vibrant red, while female cardinals are a muted brown.
Physical Features:
* Male deer have antlers, while female deer do not.
* Male seahorses have a pouch where they carry their eggs, while female seahorses do not.
* Male mantis shrimp have large, colorful claws, while female mantis shrimp have smaller, less striking claws.
Behavior:
* Male bowerbirds build elaborate structures called bowers to attract females, while female bowerbirds are not involved in this behavior.
* Male sea turtles have a large, retractable penis, while female sea turtles have a cloaca.
These are just a few examples. There are countless other ways that animals can differ in appearance between males and females. The reasons for sexual dimorphism are varied and complex, but they often relate to attracting mates, competing for resources, or caring for offspring.