(A) Phagocytosis assay analysis of mouse and lizard blood cells collected 0, 3, 7, 14, and 21 days post-tail amputation (DPA). N= 3. * p<0.05, compared to lizard 0 DPA; # p<0.05, compared to mouse 0 DPA. (B, C) Histological analysis of (B) lizard and (C) mouse tail samples collected 0, 3, 7, 24, and 21 DPA. Phagocytic cells were labeled by uptake of DiI-containing liposomes, and sampled were counterstained with DAPI. Dashed lines denote amputation planes. Bar = 250 μm. (B) Quantification of lizard and mouse phagocytosis levels detected in tail histology samples 0–21 DPA. N= 3. * p<0.05, compared to lizard 0 DPA; # p<0.05, compared to mouse 0 DPA.