All Yesterdays May 2026

: Instead of only drawing what the bones explicitly show, the authors use "informed speculation" to suggest plausible soft tissue features—like fat deposits, feathers, and wattles—that do not leave fossilized remains but are common in living relatives.

The central tenet of the book is that paleontological art often defaults to "overly conservative" depictions that ignore the biological diversity seen in modern animals. All Yesterdays

: To highlight the flaws in traditional paleoart, the authors "reverse-engineer" modern animals. They illustrate how future paleontologists might incorrectly reconstruct modern species like elephants, cats, and swans if they only had their skeletons to work with, resulting in bizarre, unrecognizable creatures. Impact and Legacy All Yesterdays – book review | Dinosaurs - The Guardian : Instead of only drawing what the bones