Category: spiders (Page 10 of 14)

Weekend Science Fun: Spiders Into Space

Eeek, there are spiders everywhere this week. Here at Growing With Science, at Wild About Ants, and on the Space Shuttle Endeavor. What? Is that why it didn’t launch?

Okay, we’re just having a bit of fun. It turns out that spiders are going into space with the next launch (which will probably be after May 10, 2011) as part of a science project. Two spiders of the species Nephila clavipes will travel to the International Space Station where they will reside for 45 days. Video cameras will record their activity and allow children here on earth to learn more about spider biology in weightlessness.

The Spiders in Space mission is hosted at BioEd Online, where you can find updates and download a module guide (requires registration). The guide gives information about the spiders and the project. The idea is to set up a similar spider habitat here on earth to allow comparisons to spider behavior in space.

You have to find your own spider to put into it.

Note:  If you are not familiar with spiders, it might be a good idea to consult an expert as to what kinds of poisonous spiders might live in your region and what they look like, before you collect any. Here’s a photograph of a common type of orb weaver, which is the kind the video recommends.

Related posts about spiders (for even more, click on the spider category in the column to the right):

Baby Spiders

Make a spider web (craft)

If you are interested in spiders, there are some more fun children’s books on our growing list of spider books at Science Books for Kids.

spider-books-for-kids

Bug of the Week: Red Mites

What do you see in this photograph?

Do you see a dark-colored bee sitting in a flower? Look again.

Can you see the red critter across from the bee?

That is a mite, a small spider relative with eight legs.

A few weeks ago I attended a conference, and a question came up a whether these large red mites on flowers are harming the plants. Are they a type of plant-feeding mite?

At the time, I thought the red mites were the same ones I often see rapidly running around on plants and in the compost heap. Those mites eat the eggs and immatures of insects and other arthropods. They are predatory. Some are called predatory running mites, genus Anystis.

In the desert, there are velvet mites (Family Trombidiidae) that are red. Some are over a quarter inch long, which is giant for mites. Velvet mites are also predatory, mostly on insects such as termites and ants.

The mite in the photograph above, however, seems to have it’s head in one of the flowers (this type of composite “flower” is actually a group of tiny flowers clustered together.) The mite doesn’t seem to be going after the bee at all.

Curious, I decided to do some research. After poking around, it seems the mite in the photograph is likely to be a member of the genus Balaustium. These mites are predatory in the young stages, but also feed on pollen as adults. Of course, feeding on pollen doesn’t harm the plants. The bees take loads of it.

Sometimes the mites are found clustering together in the spring. No one knows for sure why.

I wonder why they are so brightly colored?

Have you ever seen red mites?

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