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The Goliath birdeater (Theraphosa blondi) belongs to the tarantula family Theraphosidae.Found in northern South America, it is the largest spider in the world by mass (175 g (6.2 oz)) and body length (up to 13 cm (5.1 in)), and second to the giant huntsman spider by leg span. [1]
When they detect the ripples from prey, they run across the surface to subdue it using their foremost legs, which are tipped with small claws; like other spiders they then inject venom with their hollow jaws to kill and digest the prey. They mainly eat insects, but some larger species are able to catch small fish. [10] [11]
The tip of the tarsus bears claws, which vary in number and size. 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]
Sea spiders eat a diet of worms, jellyfish, sponges, soft corals, and other soft-bodied sea creatures. The most unique feature of the sea spider’s anatomy is its legs.
Luckily, spiders eat mostly insects -- especially the ones you may also find in your home. But as spiders get bigger, so do their prey, and larger arachnids feast on lizards, birds and small mammals.
Although they miss on about 50% of strikes, they catch about the same weight of insects per night as web-weaving spiders of similar size. The spiders eat the bolas if they have not made a kill in about 30 minutes, rest for a while, and then make new bolas. [66] [67] Juveniles and adult
A large, brightly colored invasive species called the Joro spider is on the move in the United States. Populations have been growing in parts of the South and East Coast for years, and many ...
In Latrodectus hasselti, larger males outcompete smaller males by getting to the females web first. However, these large male spiders have long development times, meaning that the larger male will need more time before being able to copulate. Smaller males tend to have a quick development time which gives them an advantage in mating with a female.