| 0 | - | cover | 1 | pencils: Marc Silvestri; inks: Marc Silvestri; colors: Stjepan Šejić | Cyclops; Wolverine; Nightcrawler; Storm; Rogue; Multiple Man [Jamie Madrox] |
| 1 | X-Men: Endangered Species | credits, title page | 1 | pencils: Scot Eaton; inks: Andrew Hennessy; colors: Raúl Treviño | |
| 2 | Recap | recap | 1 | pencils: David Finch; inks: Danny Miki | |
| 3 | Endangered Species [Prologue] | comic story | 34 | script: Mike Carey; pencils: Scot Eaton; inks: John Dell; colors: Frank D'Armata; letters: Virtual Calligraphy's Joe Caramagna | Professor X; Cyclops; Emma Frost [White Queen]; Wolverine; Beast; Nightcrawler; Cannonball; Wolfsbane [Rahne]; Iceman; Multiple Man [Jamie Madrox]; Bishop; Mercury; Trance; Hellion; Sebastian Shaw (villain); Jean Grey (cameo flashback); Mariko Yashida (cameo flashback); Sabretooth (cameo flashback); |
| 4 | Endangered Species Chapter 1 | comic story | 8 | script: Mike Carey; pencils: Scot Eaton; inks: Andrew Hennessy; colors: Raúl Treviño; letters: Virtual Calligraphy's Joe Caramagna | Beast; Dr. Doom (cameo); Arnim Zola (cameo); Modok (cameo); Pandemic (cameo); Sugarman (cameo); Mr. Sinister (cameo); Kavita Rao (cameo); Spiral (cameo); High Evolutionary (cameo); Wolverine (cameo flashback); Bishop (cameo flashback); Spider-Man (cameo flashback); Cyclops (cameo flashback); Rogue ( |
| 5 | Endangered Species Chapter 2 | comic story | 8 | script: Mike Carey; pencils: Mark Bagley; inks: Andrew Hennessy; colors: Raúl Treviño; letters: Virtual Calligraphy's Joe Caramagna | Beast; Dr. Doom (cameo); Arnim Zola (cameo); Modok (cameo); Pandemic (cameo); Sugarman (cameo); Mr. Sinister (cameo); Kavita Rao (cameo); Spiral (cameo); High Evolutionary (cameo); Beast Men (cameo) |
| 6 | Endangered Species Chapter 3 [of 17] | comic story | 8 | script: Mike Carey; pencils: Mark Bagley; inks: Andrew Hennessy; colors: Raúl Treviño; letters: Virtual Calligraphy's Joe Caramagna | Beast, High Evolutionary, Hank McCoy, Herbert Edgar Wyndham |
| 7 | Endangered Species Chapter Four | comic story | 8 | script: Chris Yost; pencils: Scot Eaton; inks: Andrew Hennessy; colors: Raúl Treviño; letters: Virtual Calligraphy's Joe Caramagna | Beast; Dr. Kavita Rao; Ord (cameo flashback) |
| 8 | Endangered Species Chapter Five | comic story | 8 | script: Mike Carey; pencils: Scot Eaton; inks: Andrew Hennessy; colors: Raúl Treviño; letters: Virtual Calligraphy's Joe Caramagna | Beast; Cyclops (guest); Emma Frost [White Queen] (guest); Wolverine (guest); Kitty Pryde (guest); Dark Beast (cameo) |
| 9 | Endangered Species Chapter Six | comic story | 8 | script: Mike Carey; pencils: Mike Perkins; inks: Andrew Hennessy; colors: Raúl Treviño; letters: Virtual Calligraphy's Joe Caramagna | Beast; VILLAIN: Dark Beast |
| 10 | Endangered Species Chapter 7 [of 17] | comic story | 8 | script: Mike Carey; pencils: Mike Perkins; inks: Andrew Hennessy; colors: Raúl Treviño; letters: Virtual Calligraphy's Joe Caramagna | Beast [Henry McCoy]; Dark Beast [Henry McCoy] |
| 11 | Endangered Species Chapter 8 | comic story | 8 | script: Christos Gage; pencils: Scot Eaton; inks: Andrew Hennessy; colors: Raúl Treviño; letters: Virtual Calligraphy's Joe Caramagna | Beast; Dark Beast; Destiny [Irene Adler] (cameo flashback); Kurt Marko (cameo flashback); Brian Xavier (cameo flashback); Mr. Sinister (cameo flashback); Amanda Mueller (cameo flashback) |
| 12 | Endangered Species Chapter 9 | comic story | 8 | script: Christos Gage; pencils: Scot Eaton; inks: Andrew Hennessy; colors: Raúl Treviño; letters: Virtual Calligraphy's Joe Caramagna | Beast; VILLAIN: Dark Beast; CAMEO: Bishop |
| 13 | Endangered Species Chapter 10 | comic story | 8 | script: Christos Gage; pencils: Tom Grummett; inks: Andrew Hennessy; colors: Raúl Treviño; letters: Virtual Calligraphy's Joe Caramagna | Beast; Bishop (guest); Charlie Hustle (villain) |
| 14 | Endangered Species, Chapter 11 [of 17] | comic story | 8 | script: Christos Gage; pencils: Scot Eaton; inks: Andrew Hennessy; colors: Raúl Treviño; letters: Virtual Calligraphy's Joe Caramagna | Beast [Henry McCoy]; Dark Beast [Henry McCoy]; Forge |
| 15 | Endangered Species Chapter 12 | comic story | 8 | script: Mike Carey; pencils: Mike Perkins; inks: Andrew Hennessy; colors: Raúl Treviño; letters: Virtual Calligraphy's Joe Caramagna | Beast; Guthrie Family; Dark Beast (villain) |
| 16 | Endangered Species Chapter 13 | comic story | 8 | script: Mike Carey; pencils: Mike Perkins; inks: Andrew Hennessy; colors: Raúl Treviño; letters: Virtual Calligraphy's Joe Caramagna | Beast; GUESTS: Guthrie Clan; VILLAIN: Dark Beast |
| 17 | Endangered Species Chapter 14 | comic story | 8 | script: Christopher Yost; pencils: Andrea DiVito; inks: Andrea DiVito; colors: Raúl Treviño; letters: Virtual Calligraphy's Joe Caramagna | Beast; Dr. Strange (guest); Wong (guest); Spiral (villain); Scarlet Witch (cameo flashback) |
| 18 | Endangered Species, Chapter 15 [of 17] | comic story | 8 | script: Christopher Yost; pencils: Andrea DiVito; inks: Andrea DiVito; colors: Raúl Treviño; letters: Virtual Calligraphy's Joe Caramagna | Beast [Henry McCoy]; Dr. Strange [Stephen Strange]; Wong; The Watcher |
| 19 | Endangered Species Chapters 16 & 17 | comic story | 16 | script: Mike Carey; pencils: Scot Eaton; inks: Andrew Hennessy; colors: Raúl Treviño; letters: Virtual Calligraphy's Joe Caramagna | Beast, Wanda Maximoff, Hank McCoy, Nightcrawler, Scarlet Witch, Kurt Wagner |