Working with Arachnids
Do you want to work with arachnids?
You have chosen a career to follow and prepare for, now it's time to learn more about the species you will work with.
Follow the 3 easy steps to help you read and learn more about arachnids, how to work with them, and how to gain experience, everything while having a huge amount of fun!
1. DEFINITION OF ARACHNIDS
A group of small wingless invertebrate animals (arthropods), having a body divided into two parts, the cephalothorax and the abdomen, with four pairs of jointed legs.
The word Arachnida comes from the Greek for 'spider'
2. BASIC FACTS
Arachnids have been around for over 500 million years
In almost every continent and in all diverse conditions. With the inclusion of the Horseshoe Crab (of the family Limulidae), arachnids are also found in the sea.
There are over 100,000 different species of arachnids, of which spiders account for nearly 40%. Scientists discover new species of arachnids every year.
The smallest arachnids are mites that can be almost microscopic at 0.1 mm (0.004 inch) in length. The largest living arachnids by diameter are the Chinese Horseshoe Crab (Tachypleus tridentatus), of which the females can reach as much as 79.5 cm (31.3 in).
The average is about a year, but it depends on species. Mites only live for about three weeks, while some spiders can live for over 10 years.
Reproduction varies greatly according to species. In most species both the male and female reproductive organs are at the rear of the abdomen, but spiders don't mate by coupling these organs. Instead, the male deposits some sperm onto a small web in its pedipalps. When the female is in position, the male deposits the sperm in the female's genital opening. The female may or may not use the sperm right away, with some species storing the sperm until she is ready to have her eggs fertilized. A male scorpion guides his mate over to a sperm packet he's deposited. Ticks mate while the female is attached to her host. In Horseshoe Crabs, the female deposits eggs in the sand, and the male(s) then fertilize them. It's not uncommon for the male to become dinner to his mated partner, particularly in spiders and scorpions.
Some species give birth to live young, although egg-laying is the most common form of birth among arachnids. Female ticks lay eggs just before dying. Scorpions give birth to live young. Camel spiders or sun spiders, bury their eggs, as do harvestmen.
Most arachnids are carnivorous. Most arachnids can only eat liquid food, not solid food, so they squirt digestive chemicals into their prey and suck out the juice.
Different Orders of Arachnids:
3. arachnid GROUPS
Learn even more about arachnids or specific species by joining one of the thirteen (13) ARACHNID GROUPS.
The current 13 Groups, according to the Orders:
Members of the Groups can access all the different OZT Short Courses, win awards and meet other arachnid lovers from around the world. Gain experience points with each short course and compete for the top spot on the leader board!
Topics covered in the ARACHNID GROUP:
Public Groups / 2,300 Members
Join a specific GROUP by clicking on the name in the above list
Order: 11 different orders
Species: over 100,000 different species
Help by contributing towards the Arachnid information
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