We’ve drawn iconic sail-wearing Dimetrodon wrong for 100 years

Dimetrodon, one of the most recognisable of the pre-dinosaur predators, is due a makeover. For more than a century, it has been depicted as a sluggish, belly-dragging beast with sprawling legs – but it might actually have held its legs in a more upright position and kept its stomach off the ground as it walked. Image: puuikibeach

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