Nigel Cattlin / Lupin aphid (Macrosiphum albifrons) infestation on stem and apical shoots of young Tree lupin (Lupinus arboreus). Berkshire, England, UK. May.

Thomas Marent / Apical Flycatcher (Myiarchus apicalis), Chicaque Natural Park, Colombia

Chris Mattison / Aesculapian snake (Zamenis longissimus) close-up of dorsal scales from a shed skin, showing apical pits, thought to be sensory organs. Native to southern Europe.

Nigel Cattlin / King flower, the apical dominant flower, on Apple buds and blossom among a rosette of green leaves in spring Berkshire, England, UK.

Nigel Cattlin / Stem flattening 'fasciation' on a Spear thistle, (Cirsium vulgare) flowering plant, Berkshire, England, UK, June

Nigel Cattlin / Carnation tortrix (Cacoecimorpha pronubana) caterpillar feeding and binding the leaves of red valerian (Centranthus ruber) Berkshire, England, UK. September

Nigel Cattlin / Carnation tortrix (Cacoecimorpha pronubana) caterpillar feeding and binding the leaves of red valerian (Centranthus ruber) Berkshire, England, UK. September