Now deep-water cameras have revealed how, and where, these tiny animals do it.The black-and-white footage collected by cameras at 16 stations off East Antarctica shows the ghostlike creatures darting about.
In the footage, mature males are identifiable by their elongated shapes and prominent antennae.
Females have thoraxes – the region between their head and abdomen – swollen with eggs.
The mating sequence begins with a chase, in which the male pursues the female.
A surveillance camera set up by Santa Fe County to catch graffiti vandals on public property instead recorded footage of a uniformed New Mexico state police officer apparently having sex with a woman.
The sheriff's office confirms the video was taken on county land at the Santa Fe Canyon Ranch, a 470-acre spread that includes a 7,800-square-foot mansion, guest quarters, a foreman's residence, swimming pool, tennis courts, a barn, corrals and a lake.
The sheriff's office says the unidentified officer faces an internal investigation, KOB TV reports.
The office released two photographs of the scene under a public records request by the says the photos show a man in a police uniform standing and leaning over a woman, who is lying on the hood of a compact car with her bare legs around the man's body.
The camera's point of view is above and behind the officer.
His utility belt, with handcuffs attached, hangs behind him.
At one point, the officer appears to be looking toward the camera.
The sex lives of the ocean-dwelling crustaceans known as krill have been largely a mystery.