A brief list, without the links to library aggregator worldcat.org in the interest of time:

An Immense World, by Ed Yong; grabbed my attention right away

Are We Smart Enough to Know How Smart Animals Are, by Frans de Waal; got here from dog training and Temple Grandin and animal behaviorist Patricia McConnell

How Far the Light Reaches, by Sabrina Imbler; looks fascinating

Feral, by George Monbiot; Iteland used to be a rainforest, and salmon used to choke the rivers out here in the Pacific Northwest