Susan J. Crockford, a Ph.D., zoologist, evolution specialist, and author. with over 35 years of experience, explains how initial assumptions about polar bears’ dependency on summer sea ice have proven incorrect. Crockford highlights the significance of spring ice for hunting seals and also delves into the controversy surrounding a 2019 Netflix documentary that wrongly linked walrus deaths to climate change. Additionally, she explores the domestication of dogs, arguing that environmental stress and habitat changes were critical to wolves evolving into dogs. For more on Susan J. Crockford:susancrockford.compolarbearscience.comSusan J Crockford on X