
Carbon cycle based around a tree, fully annotated
Illustration showing annotated carbon cycle including images of leaf litter detritovores, soil micro-organisms, root tips, and the importance of respiration and photosynthesis For more on this illustration, check out my blog

Carbon cycle centred around a tree
Illustration of the Carbon cycle, with all the elements and chemicals involved in the cycle (but omitting arrows and english text). For more on this illustration, check out my blog

Carbon cycle: Beech tree with roots, leaf litter, and fungal hyphae
Used as the basis for a diagram showing the Carbon cycle. For more on this illustration, check out my blog

Woodpecker skull with hyoid horns
Woodpecker skull with hyoid horns diagram, viewed in profile

Woodpecker skull with hyoid horns from above
Woodpecker skull with hyoid horns view from above diagram

Homologous structures vertebrate forelimb bones
Diagram showing homologous bones in the arm and wing; with bat, bird and human illustrated

Pigeon skeleton Columba livia
Pigeon Columba livia skeleton simple line drawing

Diagram of a duck skeleton
Stylized diagram of the skeelton of a duck

Diagram of the internal anatomy of a duck
Stylized diagram of the internal organs and anatomy of a duck within a pen outline