Some random

Aug. 7th, 2008 06:39 am
urbpan: (springtail)
I haven't been keeping up with the weird wonderful world out there but I came across a couple interesting stories yesterday.

For example, I love a bioluminescent anything, so learning that there's a species of bioluminescent springtail is pretty great. Too bad they faked most of the pictures. Of course, this creature lives in New Zealand.

There were two tiger attacks this week in Missouri, a region of the world I hadn't associated with tiger attacks before. One involved a 16 year old "employee" (I can't fathom how someone that young would be allowed to work with such dangerous animals, EVER) and the other involved a volunteer. Most animal facilities rely on volunteers a lot, but none should rely on them to do anything that results in getting attacked by a tiger. The last news story I read said that the 16 year old is still in critical condition. The other victim lost part of his leg to the attack. The most shocking part of that second story was the attempted cover-up. The facility told authorities that it wasn't a tiger that injured their worker...are you ready? No, they said it was a pit bull that nearly tore a grown man's leg off. Yes, the pit bull myth has become so pervasive that these people thought that it was a plausible story--Charles Stuart, anyone?

Well, if you can't have an imaginary killer pit bull, perhaps you'd like a cloned hero pit bull? This story causes mixed feelings for pit bull lovers everywhere. On the one hand, it's a rare bit of positive press for this type of dog. On the other hand, it gives the impression that a good pit bull is so rare that you need to take advantage of cutting edge science in Korea and spend 50,000 dollars to get one. Interestingly, the act of heroism that Booger (groan) was known for was attacking another dog; the fear of this act causes many shelters to kill any and all pit bulls they receive, whether or not the dog ever attacked anyone. There are however, at any moment, eight or nine thousand of these dogs available for adoption from shelters in this country.
urbpan: (cold)

Photos by [livejournal.com profile] urbpan.

Urban species #333: Globular springtail Dicyrtoma marmorata

I think this animal is Dicyrtoma marmorata. But there's a very good chance I am wrong. It is minute--the size of the head of a pin--and more to the point, I am not an entomologist. But I am absolutely sure that it is a Collembolan, a springtail, and that it is a member of the family Sminthuridae, the globular springtails. The species designation I am guessing based on some websites I looked at today, especially this one.

Springtails are delightful little animals, six legged creatures which have bottoms which are affixed with a propulsory appendage. They walk about on their legs, but when they need to make a quick escape, their furcula (that's what it's called) launches them a great distance away, very suddenly. Many springtails have the word "flea" in their common names for this reason, but they are not related to fleas. In fact, despite having six legs and antennae, they aren't insects at all, their ancestors having diverged from insects at about the same time that the crustaceans did.

Collembolans are very common animals in compost heaps, and on decaying leaves and other organic matter, but they may be overlooked because of their size. Often they appear rather suddenly, in great numbers. They may be active when it is too cold for most other arthropods, and there are even some species that feed on the algae that grows on snow. Recent studies have shown that springtails play an important role in the reproduction of mosses. They are thought to mostly feed on fungi, algae, pollen grains, and other tiny organic particles. Fascinating springtail social behavior has been recorded with astonishing photography in the documentary series "Life in the Undergrowth." (link contains video footage!)

Many more images )

Profile

urbpan: (Default)
urbpan

May 2017

S M T W T F S
 123456
78910111213
1415 1617181920
21222324252627
28293031   

Syndicate

RSS Atom

Most Popular Tags

Style Credit

Expand Cut Tags

No cut tags
Page generated May. 25th, 2025 07:09 pm
Powered by Dreamwidth Studios