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Spiders that spin webs typically have three claws, the middle one being small; hunting spiders typically have only two claws. Since they do not have antennae, spiders use specialised and sensitive setae on their legs to pick up scent, sounds, vibrations and air currents. [6] Some spiders, such as the Australian crab spider, do not have claws.
In spiders, the coxae frequently have extensions called maxillae or gnathobases, which function as mouth parts with or without some contribution from the coxae of the anterior legs. The limbs themselves may be simple tactile organs outwardly resembling the legs, as in spiders , or chelate weapons (pincers) of great size, as in scorpions .
Carnivores have chelicerae that tear and crush prey, whereas herbivores can have chelicerae that are modified for piercing and sucking (as do parasitic species). In sea spiders, the chelicerae (also known as chelifores) are short and chelate and are positioned on either side of the base of the proboscis or sometimes vestigial or absent.
Seta (plural setae): A bristle; [22] spiders have a variety of hair-like structures of increasing size that are referred to as hairs, bristles (setae) or spines [29] Sigillum (plural sigilla): A circular indentation on the outside of the spider, showing where an internal muscle is attached; [ 30 ] particularly on the sternum in some ...
The jackal seems to be designated in Hebrew by three different names: shû'ãl, "the digger"; 'íyyîm, "the howlers"; and tãn, "the stretcher", although we are unable to state the differences marked by these three names, numerous references may be found throughout the Bible to the jackal's howlings and gregarious habits.
The Household Bible Dictionary [42] James Aitken Wylie: 1870 Beeton's Bible Dictionary [43] Samuel Orchart Beeton: 1871 A Bible dictionary for the use of all readers and students of the Holy Scriptures of the Old and New Testaments of the books of the Apocrypha [44] Charles Boutell: Reissued as Haydn's Bible Dictionary (1879), named for Joseph ...
Spiders have woven their way into the mystical traditions and spiritual beliefs across cultures for centuries. These eight-legged architects of the natural world hold deep symbolic meaning beyond ...
Ant-mimicking spiders face several challenges: they generally develop slimmer abdomens and false "waists" in the cephalothorax to mimic the three distinct regions (tagmata) of an ant's body; they wave the first pair of legs in front of their heads to mimic antennae, which spiders lack, and to conceal the fact that they have eight legs rather ...