Male, Brave
The narwhal and the turkey are meeting in private to uh, show each other some private things. Doing this they realize they're both male!
Picture a male narwhal and a male turkey meeting together in private. Whispering. Giggling. Pointing at each other's male bits.
ゆう
おす, お
None
These male animals are obviously experimenting with things still. Ah, they must be youths (ゆう)! To be a youth, again!
It's just nature. Youths like to learn and try new things. And if two male youth animals wanna get together in private that's their business.