AN artistss rendering of two glyptodonts fighting.

An artist’s rendering of glyptodonts wielding their tails like clubs, likely over mating rights or territory. The giant creatures that resemble the related armadillo tipped the scales at up to 4,000 pounds. Their shell-like armor was not a single shell at all, but rather was composed of fused bony plates called osteoderms. Each animal had its own individual pattern of osteoderms that was as unique as a human’s fingerprint. Illustration: Raúl D. MartÍn

Suited Up: Animals with Armor

From ankylosaurs to thorny devils, a new exhibition celebrates the animals that have—again and again—evolved biological body armor.

By Jason Bittel

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