Males of the whelk Solenoptera macrospira provide all parental care, carrying egg capsules on their back Pity the male of the marine whelk, Solenosteira macrospira. He does all the work of raising the young, from egg-laying to hatching — even though few of the baby snails are his own.

Proteins adorning the surfaces of human cells perform an array of essential functions, including cell signaling, communication and the transport of vital substances into and out of cells. They are critical targets for drug delivery and many proteins are now being identified as disease biomarkers — early warning beacons announcing the pre-symptomatic presence of cancers and other diseases.