All other mammals besides us become hostile towards humans. No advanced intelligence or world domination, just a drive to eliminate humans in their vicinity. If they do not detect humans, they'll be passive.
Can we survive?
Bonus: The same thing occurs on current Marvel/DC Earths.
The animals become hostile and immune to telepathy, and will ignore communication from heroes/villains who have an affinity/ability to speak with animals. Even people like Beast Boy will be detected and attacked no matter what form they take. Assuming the heroes/villains aren't bloodlusted and the world doesn't know what's going on, can they keep civilization intact?