Definition of "interspecies"

In view of this biochemical diversity, the possibilities of interspecies hybridization in this genus are very interesting and worthy of attention.

1985, John F. Peberdy, Lajos Ferenczy, Fungal Protoplasts, CRC Press, page 259

“You're a publicist,” she said. “She's a celebrity. That's interspecies.”

2014, William Gibson, “Death Cookie”, in The Peripheral, Penguin