Fig. 4From: Resource competition promotes tumour expansion in experimentally evolved cancerSpheroid spread versus cell speed. Bars represent the average change in spheroid area over 72 h in high (5% FBS) resource media for ancestor and lines evolved in low and high resources (± 1 SE). Closed circles represent average cell speed of cells in high resource media for ancestor and evolved lines. Areas are square-root transformed (± 1 SE)Back to article page