Adult horse-flies feed on nectar and plant exudates; the males have weak mouthparts and only the females bite animals to obtain enough protein from blood to produce eggs.
12.
Adult moths collect nectar or other plant exudates from a large number of plants, and live for 12 to 16 days . Females can lay up to 2, 500 eggs in their lifetime.
13.
The hypothesis that the toothcomb evolved for food procurement was based on observations of recent lemuriform cheirogaleid lemurs ( particularly fork-marked lemurs and the hairy-eared dwarf lemur ) and galagos, which demonstrate tooth-scraping of plant exudates, as well as sifakas, which practice bark-prising.
14.
The broadest definition of natural product is anything that is produced by life, and includes the likes of biotic materials ( e . g . wood, silk ), bio-based materials ( e . g . bioplastics, cornstarch ), bodily fluids ( e . g . milk, plant exudates ), and other natural materials ( e . g . soil, coal ).
