Regularly occurring bouts of retinal movements suggest an REM sleep–like state in jumping spiders

Hanging by a thread: unusual nocturnal resting behaviour in a jumping spider

(2021) Daniela C. Rößler et al.   Frontiers in Zoology

What Is REM Sleep?

(2020) Mark S. Blumberg et al.   CURRENT BIOLOGY

Fur Seals Suppress REM Sleep for Very Long Periods without Subsequent Rebound

(2018) Oleg I. Lyamin et al.   CURRENT BIOLOGY

A Temporally Controlled Inhibitory Drive Coordinates Twitch Movements during REM Sleep

(2016) Patricia L. Brooks et al.   CURRENT BIOLOGY

Evidence that birds sleep in mid-flight

(2016) Niels C Rattenborg et al.   Nature Communications

Context Odor Presentation during Sleep Enhances Memory in Honeybees

(2015) Hanna Zwaka et al.   CURRENT BIOLOGY

Call it sleep — what animals without backbones can tell us about the phylogeny of intrinsically generated neuromotor rhythms during early development

(2013) Michael A. Corner   Neuroscience Bulletin