Zohaib Khan(@zohaib__khan512) 's Twitter Profile Photo

harvestmen or β€˜daddy long legs’ aggregate, perhaps for defence, warmth and humidity.

The scattering is a dilution effect, confuses predators allowing most to escape.

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Nacht: Writer for @StudioSuperOff(@Nachtbrezel) 's Twitter Profile Photo

Arachnology is the scientific study of arachnids, comprising spiders and related invertebrate arthropods: scorpions, pseudoscorpions, harvestmen, ticks, and mites.

Those who study arachnids are Arachnologists.

The study of spiders alone (order Araneae) is known as Araneology.

Arachnology is the scientific study of arachnids, comprising spiders and related invertebrate arthropods: scorpions,  pseudoscorpions, harvestmen, ticks, and mites.

Those who study arachnids are Arachnologists.

The study of spiders alone (order Araneae) is known as Araneology.
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microWild(@microwildhq) 's Twitter Profile Photo

Harvestman Shedding:
Harvestmen go through a series of moults before fully mature. For the larger-legged species like Dicranopalpus ramosus, this can be an impressive behaviour to witness.
Also, did you know? Harvestmen are arachnids, but they are not spiders.

Harvestman Shedding:
Harvestmen go through a series of moults before fully mature. For the larger-legged species like Dicranopalpus ramosus, this can be an impressive behaviour to witness.  
Also, did you know? Harvestmen are arachnids, but they are not spiders. #OurOpiliones
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microWild(@microwildhq) 's Twitter Profile Photo

Harvestman Leg Loss:
Unlike spiders, harvestmen lack venom or webbing. Instead they opt for a range of defences from secreting a noxious chemical from glands, to playing dead, and in the case of this photograph – losing legs for a chance at escape.

Harvestman Leg Loss:
Unlike spiders, harvestmen lack venom or webbing. Instead they opt for a range of defences from secreting a noxious chemical from glands, to playing dead, and in the case of this photograph – losing legs for a chance at escape. #OurOpiliones
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microWild(@microwildhq) 's Twitter Profile Photo

In advance of our Harvestman course on 23rd March, Joshua Clarke (the course presenter) has put together some Harvestmen teasers to whet your appetite. I'll release a couple a day for the next few days...

Join us on the day: bit.ly/irish-opiliones

In advance of our Harvestman course on 23rd March, Joshua Clarke (the course presenter) has put together some Harvestmen teasers to whet your appetite. I'll release a couple a day for the next few days... 

Join us on the day: bit.ly/irish-opiliones
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microWild(@microwildhq) 's Twitter Profile Photo

Subtle Differences:
Over 20 species of harvestmen reside in Ireland & many are hard to tell apart. These 2 species can be separated in the field by looking closely at the colour of their eye rings: pale in Leiobunum blackwalli and dark in L. rotundum.

Subtle Differences:
Over 20 species of harvestmen reside in Ireland & many are hard to tell apart. These 2 species can be separated in the field by looking closely at the colour of their eye rings: pale in Leiobunum blackwalli and dark in L. rotundum.
#OurOpiliones
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microWild(@microwildhq) 's Twitter Profile Photo

Urban Non-Natives:
Many non-native Harvestmen often reside in urban areas (gardens & their walls) and do well here. Opilio canestrinii is one such species which may have been introduced as eggs via the horticulture trade.

Urban Non-Natives:
Many non-native Harvestmen often reside in urban areas (gardens & their walls) and do well here. Opilio canestrinii is one such species which may have been introduced as eggs via the horticulture trade. #OurOpiliones
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microWild(@microwildhq) 's Twitter Profile Photo

Harvestman Sexual Dimorphism:
Sexual dimorphism is present in harvestmen and is more obvious in some species than others. Phalangium opilio has males with variable sized chelicerae horns, whereas females have a variable colour palette, and no chelicerae horns.

Harvestman Sexual Dimorphism:
Sexual dimorphism is present in harvestmen and is more obvious in some species than others. Phalangium opilio has males with variable sized chelicerae horns, whereas females have a variable colour palette, and no chelicerae horns. #OurOpiliones
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Gemmabee πŸ¦”(@gemmabeepo) 's Twitter Profile Photo

in the UK we call harvestmen, cellar spiders and craneflies β€œdaddy long legs” because English people are too stupid to tell these things apart

in the UK we call harvestmen, cellar spiders and craneflies β€œdaddy long legs” because English people are too stupid to tell these things apart
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ky-e bricks(@ky_ebricks) 's Twitter Profile Photo

A little fanon Tholian ship I made for a commission, the Harvestmen class. The deflector design was the client's idea, rest was up to me!

A little fanon Tholian ship I made for a commission, the Harvestmen class. The deflector design was the client's idea, rest was up to me!
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Meg Skinner (British Harvestmen) (she/her)(@Megabunus) 's Twitter Profile Photo

Sometimes harvestman ovipositors/penises pop out when specimens are preserved and they are HUGE! All the better for reaching their mate or damp crevices to lay eggs.
BAS

Sometimes harvestman ovipositors/penises pop out when specimens are preserved and they are HUGE! All the better for reaching their mate or damp crevices to lay eggs. 
@BritishSpiders #arachnids #harvestmen #opiliones
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