Synopsis

The fourth episode turns its attention to the most recent arrivals in the reptile family: snakes, and investigates how these creatures have thrived despite their distinctive, elongated form. Attenborough details their evolution from subterranean dwellers to surface hunters, a journey that saw them lose their limbs altogether. Infrared cameras reveal a timber rattlesnake patiently awaiting a mouse, detecting its repeated movements before striking and consuming it. A snake’s characteristic flicker