A classic woodcut by M.C. Escher featuring two interlocking reptiles in a perfect tessellation, demonstrating his mastery of geometric plane division.

This work by M.C. Escher demonstrates his fascination with the mathematical concept of tessellation. The image features two lizard-like creatures, one rendered in black and the other in white, which interlock to cover the two-dimensional plane without gaps or overlaps. Escher utilised the woodcut medium to achieve the sharp contrast required for this geometric puzzle. By employing a strict binary colour scheme, the artist forces the viewer to perceive the figures as both positive and negative space. The reptiles are stylised to fit the specific geometric constraints of the grid, showing the artist's ability to balance representational form with abstract tiling rules. This piece is part of a broader series of studies where Escher explored periodic tilings, often inspired by his observations of Moorish tile work at the Alhambra in Spain. The composition relies on rotational symmetry, where each creature acts as a mirror image or a rotated version of its neighbour. The lines are clean and deliberate, characteristic of Escher's technical precision in printmaking. This specific motif serves as a fundamental example of how he transformed simple geometric shapes into recognisable biological forms. The work remains a clear demonstration of his interest in the division of the plane, a subject he pursued throughout his career.