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Proverb

don't judge a book by its cover

savanna monitor (Varanus exanthematicus, species of carnivorous monitor lizard native to sub-Saharan Africa); Bosc's monitor

Yemen monitor (Varanus yemenensis)

Astronomy

Lacerta (constellation); the Lizard

Squamata (order of scaled reptiles, esp. the Sauria or Lacertilia)

Iberian worm lizard (Blanus cinereus); European worm lizard

Stomiiformes (order of deep-sea ray-finned fishes)

Idiomatic expression

evading blame by pinning it on a subordinate and abandoning them; a skink lizard's shedding of its tail