Every mammal besides humans vs every human

Every other mammal has the urge to kill humans. They will seek out and hunt humans, but they won’t cooperate with each other; however, they won’t get in each other’s way. (Sea mammals will only target humans in the sea.) Who would win in each round?

Round 1: Humans have a day of prep time.

Round 2: Humans have no prep time but are aware that other mammals are targeting them.

Round 3: Humans are completely in the dark and mammal attacks will happen suddenly.