Idk if this has ever been suggested or not, but I think it'd be cool if you could go somewhere, kinda like with the battle beetles, to have a submale PvP!
I think it'd be something fun to do, and maybe be able to win things like SB, toys, maybe even carcasses or other items? I haven't really given this too much thought yet but I think it'd be a nice use for submales. And might make male cubs more valuable.

Edit: I've given this a little more thought so I'll add some more information.
For starters the cool down period. I'm thinking one Sub PvP per hour for each sub male. Maybe a half hour but I think an hour would be better.

Sub males that win, maybe there's a chance to win SB, stats, a small skull or a 3-5 use carcass.
Losers can earn a consultation prize of a feather or another toy item, or a small carcass, and might receive a common scar.

As for the actually mechanics it'd probably automatic like the beetle battles, but I'm still thinking about what else it could be.

So let me know what you guys think. ;)

Thanks for your time.

Edit:
Sparring Risks and Rewards
this is a side suggestion, if you do not support this let me know.
This was Jacksters idea, just with a few tiny tweets from me.
Alright so the way this would work is that there are different sparring levels for the PvP. If this was done like the beetle battles the fights would still be automated, but each level yields different prizes... and risks.
Casual Level:
chance of 10-25 SB, small skulls, common feathers, or small carcasses. Stat increase guaranteed, but would be low, (1-4).
Level Risks
Minimal. 10% chance of a scar.

Serious level:
Increased chance of rewards, 20-60 SB, medium skulls (3-10 use skulls/bones), 3-6 use carcasses, or rarer feathers. Stat increase 5-8.
level risks
20% chance of cooldown time being doubled, 5% of a scar.

Intense Level:
High chance, if not Guaranteed reward of one of the following, 50-100 SB, large skulls (elephants, or lions skulls), 5-10 use carcasses, feathers with higher uses. Stat increase 9-15.
level risks
25% chance of double cooldown time and a scar.
5% chance of submale in question not being able to do the PvP till next rollover.

The idea of risks works as though the submale got injured, and so he needs to rest longer.
this is a side suggestion

Other suggestions by Me

Raffle Ticket Limits