Horrific Nature
Discussion
Look here!
Aah, what a pretty thing! It's even got a name, the jewel wasp.
Oh, wait. It's got another name.
The emerald cockroach wasp?
Cockroaches are icky. And what would a wasp be doing with cockroaches anyway?
tl;dr: wasp makes zombie cockroaches for its babies.
Aah, what a pretty thing! It's even got a name, the jewel wasp.
Oh, wait. It's got another name.
The emerald cockroach wasp?
Cockroaches are icky. And what would a wasp be doing with cockroaches anyway?
Wikipedia said:
As early as the 1940s it was reported that female wasps of this species sting a roach (specifically a Periplaneta americana, Periplaneta australasiae or Nauphoeta rhombifolia) twice, delivering venom.
A 2003 study using radioactive labeling demonstrated that the wasp stings precisely into specific ganglia of the roach. It delivers an initial sting to a thoracic ganglion and injects venom to mildly and reversibly paralyze the front legs of its victim. This facilitates the second venomous sting at a carefully chosen spot in the roach's head ganglia (brain), in the section that controls the escape reflex.
As a result of this sting, the roach will first groom extensively, and then become sluggish and fail to show normal escape responses. In 2007 it was reported that the venom of the wasp blocks receptors for the neurotransmitter octopamine.
The wasp proceeds to chew off half of each of the roach's antennae.
Researchers believe that the wasp chews off the antenna to replenish fluids or possibly to regulate the amount of venom because too much could kill and too little would let the victim recover before the larva has grown. The wasp, which is too small to carry the roach, then leads the victim to the wasp's burrow, by pulling one of the roach's antennae in a manner similar to a leash. Once they reach the burrow, the wasp lays a white egg, about 2 mm long, on the roach's abdomen. It then exits and proceeds to fill in the burrow entrance with pebbles, more to keep other predators out than to keep the roach in.
With its escape reflex disabled, the stung roach will simply rest in the burrow as the wasp's egg hatches after about three days. The hatched larva lives and feeds for 4–5 days on the roach, then chews its way into its abdomen and proceeds to live as an endoparasitoid. Over a period of eight days, the wasp larva consumes the roach's internal organs in an order which guarantees that the roach will stay alive, at least until the larva enters the pupal stage and forms a cocoon inside the roach's body. Eventually the fully grown wasp emerges from the roach's body to begin its adult life. Development is faster in the warm season.
Adults live for several months. Mating takes about one minute, and only one mating is necessary for a female wasp to successfully parasitize several dozen roaches.
While a number of venomous animals paralyze prey as live food for their young, Ampulex compressa is different in that it initially leaves the roach mobile and modifies its behavior in a unique way. Several other species of the genus Ampulex show a similar behavior of preying on cockroaches. The wasp's predation appears only to affect the cockroach's escape responses. Research has shown that while a stung roach exhibits drastically reduced survival instincts (such as swimming, or avoiding pain) for approximately 72 hours, motor abilities like flight or flipping over are unimpaired.
AAAAH I WONT BE SLEEPING TONIGHTA 2003 study using radioactive labeling demonstrated that the wasp stings precisely into specific ganglia of the roach. It delivers an initial sting to a thoracic ganglion and injects venom to mildly and reversibly paralyze the front legs of its victim. This facilitates the second venomous sting at a carefully chosen spot in the roach's head ganglia (brain), in the section that controls the escape reflex.
As a result of this sting, the roach will first groom extensively, and then become sluggish and fail to show normal escape responses. In 2007 it was reported that the venom of the wasp blocks receptors for the neurotransmitter octopamine.
The wasp proceeds to chew off half of each of the roach's antennae.
Researchers believe that the wasp chews off the antenna to replenish fluids or possibly to regulate the amount of venom because too much could kill and too little would let the victim recover before the larva has grown. The wasp, which is too small to carry the roach, then leads the victim to the wasp's burrow, by pulling one of the roach's antennae in a manner similar to a leash. Once they reach the burrow, the wasp lays a white egg, about 2 mm long, on the roach's abdomen. It then exits and proceeds to fill in the burrow entrance with pebbles, more to keep other predators out than to keep the roach in.
With its escape reflex disabled, the stung roach will simply rest in the burrow as the wasp's egg hatches after about three days. The hatched larva lives and feeds for 4–5 days on the roach, then chews its way into its abdomen and proceeds to live as an endoparasitoid. Over a period of eight days, the wasp larva consumes the roach's internal organs in an order which guarantees that the roach will stay alive, at least until the larva enters the pupal stage and forms a cocoon inside the roach's body. Eventually the fully grown wasp emerges from the roach's body to begin its adult life. Development is faster in the warm season.
Adults live for several months. Mating takes about one minute, and only one mating is necessary for a female wasp to successfully parasitize several dozen roaches.
While a number of venomous animals paralyze prey as live food for their young, Ampulex compressa is different in that it initially leaves the roach mobile and modifies its behavior in a unique way. Several other species of the genus Ampulex show a similar behavior of preying on cockroaches. The wasp's predation appears only to affect the cockroach's escape responses. Research has shown that while a stung roach exhibits drastically reduced survival instincts (such as swimming, or avoiding pain) for approximately 72 hours, motor abilities like flight or flipping over are unimpaired.
tl;dr: wasp makes zombie cockroaches for its babies.
linkdibbers006 said:
It's an episode of the X-Files. They drill into a dormant volcano or something and release a hibernating mould type stuff thing. It's not real.
Don't worry... I'm sure there aren't any fungus like that in real life...
Whatever makes you think that?Don't worry... I'm sure there aren't any fungus like that in real life...
That wasps tactics could just as easily be used to describe those adopted my most human females when seeking a host......except they shag us into paralysis rather than using vemon....the end resutl is the same though.
"As a result of this barrage of sex, the man will first groom extensively, and then become sluggish and fail to show normal escape responses."
"As a result of this barrage of sex, the man will first groom extensively, and then become sluggish and fail to show normal escape responses."
Timmy35 said:
That wasps tactics could just as easily be used to describe those adopted my most human females when seeking a host......except they shag us into paralysis rather than using vemon....the end resutl is the same though.
"As a result of this barrage of sex, the man will first groom extensively, and then become sluggish and fail to show normal escape responses."
haha sooo true,"As a result of this barrage of sex, the man will first groom extensively, and then become sluggish and fail to show normal escape responses."
loads of sex for the first 6 months to a year until you are fully dependent, then slowly the amount falls off to about once a week, if your lucky haha!
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