X-Men: Endangered Species

On M-Day the mutant population was reduced to a fraction of what it once was.  Beast decides to try to find a way to reverse the effects of M-Day,  in the hopes of preventing the extinction of mutantkind.

Year Published:  2007
Featured Characters:  Beast,  X-Men
Previous Event:  Annihilation
Next Event:  X-Men: Messiah Complex

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Issues

Black entries are ongoing series
Green entries are Limited series
Red entries are One-Shots
Blue is for comments

Reading Order

X-Men: Endangered Species #1 (2007)

The rest of the crossover takes place as back-ups in the following issues:

X-Men Vol. 2 #200

Uncanny X-Men #488

X-Factor Vol. 3 #21

New X-Men Vol. 2 #40

X-Men Vol. 2 #201

Uncanny X-Men #489

X-Factor Vol. 3 #22

New X-Men Vol. 2 #41

X-Men Vol. 2 #202

Uncanny X-Men #490

X-Factor Vol. 3 #23

New X-Men Vol. 2 #42

X-Men Vol. 2 #203

Uncanny X-Men #491

X-Factor Vol. 3 #24

X-Men Vol. 2 #204