“Cross fostering” Mexican Wolves for reintroductions and to increase genetic diversity.    NOTE: this video was originally published to NationalGeographic.co.uk on May 5, 2018.   https://sire-ngcuk-pmd.fichub.com/mpx/NGP_NatGeo_GS/857/768/mexican-wolf-puppy-cross-foster-animals_UK2~~~~~uk~mux~~1_195244613270_mp4_video_1920x1080_4000000_primary_audio_eng_6.mp4