This dive captures an octopus making physical contact. The animal responds instinctively, not aggressively. Tentacles grip with surprising strength. The diver remains calm to avoid escalation. Marine ...

NATURE (8 p.m., PBS / UNC-TV) - In the Season 38 premiere, titled “Octopus: Making Contact,” a marine biologist studies octopus behavior, documenting the evolving relationship between a pet octopus ...