small worm kills a fly in flight
https://www.hs.fi/tiede/art-2000011565053.html
"fly ringworm" coils up into a spring like shape
it waits for a fruit fly to fly over it
the worm is too small for human eyes to see but already with 10x magnification you can see it,
its not like its the size of bacteria
but actually bacteria do play a role
when the worm jumps onto fly, it will then burrow onto its abdomen
there it will transmit a lethal bacteria to fly
fly can handle the infection roughly 48 hours tops and will then die
once the fly is dead and lays on ground the worm will look for a mate, then both worms exchange genetic material
they will lay eggs onto the fly corpse and baby worms eat the fly
bacteria doesnt get much out of this arrangement, it is believed, but without him the worm has no means to kill the fly quickly