Myths and misconceptions abound when it comes to how Spiders ingest, digest, and store food.
What many tarantula keepers see when they feed their charges often leads to misleading
conclusions. For example, if a keeper feeds a large grasshopper to a tarantula, then returns the
next day to find nothing apparent remaining, it's natural to assume the spider ate the entire
animal, exoskeleton and all. In fact, spiders are liquid feeders. If no solid remains are found, it
simply means that they are hidden somewhere in the cage.
In order for food particles to get past the extensive filter system of the spider's mouth, they
have to be quite small. Only particles less than 1 μm (one micrometer) get past. That's one
thousandth (10-3) of a millimeter, or one millionth (10-6) of a meter.
Feeding Behavior
Spiders are split into two major feeding groups based on the method they use for prey
manipulation. The feeding method of any particular species is based, perhaps erroneously, on the
presence or absence of cheliceral teeth. Cheliceral teeth are sharp, hardened points in a line on
the chelicerae above the fangs. The fangs fold in on top of the teeth, facilitating a firm, crushing
grip on the prey.
In most, but not all spider species having cheliceral teeth (including tarantulas), the prey is
ripped to pieces and manipulated into an unrecognizable ball, or bolus.
In spiders with no cheliceral teeth, although also included are certain species with cheliceral
teeth, the body of the prey is perforated in one or more areas by the fangs. The prey is not torn
apart, and if an exoskeleton is present, it looks much like it did in life after feeding is over.
Traditionally, arachnologists have used the presence of cheliceral teeth as the indicator of what
method a spider species will use when feeding on prey, yet accept that some with cheliceral teeth
are exceptions.
Cheliceral teeth may be a good indicator of feeding methods, or they may not. Many cobweb
weavers (Theridiidae) have few or no cheliceral teeth, such as the largest members of the family,
the widow spiders (Latrodectus). Even without cheliceral teeth, widow spiders are capable of
tearing the prey to pieces, but they don't. I suggest some other adaptation, such as a more
powerful sucking stomach, or specialized mouthparts, may be of equal value in explaining why
some species tear the prey apart and others do not. This hypothesis needs scientific evaluation,
but so does the cheliceral teeth hypothesis.
Many animal species have pinchers. Crabs, scorpions, shrimps, lobsters, and some bugs like beetles all have pinchers along with many others.
No, they are not poisonus. The feelers look like pinchers but they do not hurt. http://upload.wikimedia.org/wikipedia/commons/a/aa/Araniella_cucurbitina_II.jpg
Pinchers in the back sounds like an earwig.
It is estimated that there are over 45,000 species of spiders worldwide, but it is challenging to accurately estimate the total number of individual spiders. Spiders play a crucial role in ecosystems by controlling insect populations.
Spiders are arachnids, so they have eight legs.
Spiders do not have pinchers. Pinchers are a feature of scorpions, which are not spiders.
Some spiders are white. So are scorpions. The spiders can sometimes be poisonous or non- poisonous so can scorpions.
Many animal species have pinchers. Crabs, scorpions, shrimps, lobsters, and some bugs like beetles all have pinchers along with many others.
I'm pretty sure spiders don't have teeth. They have pinchers and can only drink liquids. But spiders spray digestive juices on tissue and this makes the tissue predigestable. So then the tissue can be drunk because the juice softens the tissue.
You need to be much more precise. Insects have 6 legs. Spiders and other arachnids have 8 legs. Millipedes and centipedes have many more.
lobsters,crabs,shrimp,spiders, andhorseshoecrabs are related to scorpions.to me I think lobsters are mostrelated because they have pinchers like scorpions.
Pinchers was born on 1965-04-12.
No, they are not poisonus. The feelers look like pinchers but they do not hurt. http://upload.wikimedia.org/wikipedia/commons/a/aa/Araniella_cucurbitina_II.jpg
it has 1 stinger and 2 pinchers
mincher pinchers are dogs you can't really 'use' them as such
no minicher pinchers are not mean they are just really protective
Pinchers in the back sounds like an earwig.