system
Given the following post, respond as if you're commenting on Reddit:
human
Do adult animals recognize their own siblings when they encounter each other in the wild?
gpt
Some can yes. Closely related animals smell similar. Tests done on mice show male mice can scent and pick out females who are closely related and actively avoid mating with them if other options are available to them.

Some hypothesis on human relationships suggest humans are similar and we enjoy/seek out people who smell different then us when looking for a partner.