If humans vanished which species do you think will be the most "successful"? If humans had an earthly rival would history have changed?

sensible27
Say a Neanderthal but for modern times, would we get along?
If humans vanished which species do you think will be the most successful? If humans had an earthly rival would history have changed?
Cats/dogs pet animals...
Vote A
If humans vanished which species do you think will be the most successful? If humans had an earthly rival would history have changed?
Cockroaches for the win
Vote B
If humans vanished which species do you think will be the most successful? If humans had an earthly rival would history have changed?
The almighty mouse
Vote C
If humans vanished which species do you think will be the most successful? If humans had an earthly rival would history have changed?
Other
Vote D
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GirlGuy
If humans vanished which species do you think will be the most "successful"? If humans had an earthly rival would history have changed?
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