Watch Last of the Longnecks

Featuring unprecedented footage, "Last of the Longnecks" (aka "Mission Critical: Walking with Giraffes" on NatGeo) follows top scientists, wildlife conservationists, and anti-poachers from Africa to Europe to the United States -- shedding light on the giraffe's struggle against a silent extinction, while discovering what hope can be found in the tangled relationship between humanity and nature.