These are the invisible translucent things that brush against your fingers when you are swimming in the sea, but when you look, there's nothing there :-)
Normally I find them in ribbons all stuck together but they separate once caught and poured into a container.
They're transparent, tubular with an 'eye' at one end and jet through the water as one end of them pulsates open and closed.
Each about 1cm long.
Video clip slowed down by 50%.
Wasp drilling hole then implanting eggs into a bagmoth. Observed over a twelve minute period. A bit like keyhole surgery.
Small dark moth on clover flower with iridescent legs and wing margins.
Casual observation -- image quality too poor for verification.
A male Paradise Shelduck looking after its progeny.