Fossil footprints may put lizards on two feet 110 million years ago
But the prints aren’t clear-cut, others say
![fossil footprints](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2018/02/021518_HT_lizard-feet_main.jpg?fit=860%2C460&ssl=1)
IMPRINTS Scientists think that these fossilized footprints may represent the earliest evidence of a lizard running on two legs. Here, a front print (left) and a back print (right) are shown.
H. Lee et al/Scientific Reports 2018