Navigation Links
The leggiest animal on Earth lives in the outskirts of Silicon Valley
Date:11/14/2012

The leggiest animal in the world, the millipede lllacme plenipes, was re-discovered several years ago in California by Paul Marek. Now, Marek and his colleagues provide further details of the surprisingly complex anatomy of this diminutive creature and its extreme rarity, limited to a handful of spots just south of San Francisco. More details about the species and its biology can be read in an article that was recently published in the open access journal ZooKeys.

Millipedes have the most legs of any animal group. From their ancestors with just one pair of legs per body segment, millipedes evolved two pairs (four total) through segmental fusion. This coalescence of segments happened deep in the evolutionary history of millipedes, more than 400 million years ago. Four legs provide more thrust on a per segment basis, which benefits millipedes to help them burrow underground--e.g., to escape predators or access new resources. Those individuals with a coalescence of segments and hence a better burrowing ability, were able to persist in this early primordial ecosystem.

The most noticeable thing about millipedes are their number of legs, which lined up along their bodysides step in synchronous "metachronal waves". The acme of legginess in millipedes, and all animals for that matter, is the Californian species Illacme plenipes (literally meaning "in highest fulfillment of feet"). The females have up to an astounding 750 legs, outclassing the males who only have a maximum leg count of 562. The proliferation of legs may be an adaptation for its lifestyle spent burrowing underground or (based on the presence of features like legs with bifurcate claws and other traits known to be associated with rock-climbing in millipedes) enable it to cling tightly to the sandstone boulders found exclusively associated with the species in its habitat

"This relict species is the only representative of its family in the Western Hemisphere. Its closest presumed relative, Nematozonium filum, lives in South Africa and this early relationship was established more than 200 million years ago when the continents coalesced in the landmass Pangaea", said the lead author Dr Paul Marek, from the University of Arizona.

Not only is this species the leggiest animal known on the planet, it also has surprising anatomical features: body hairs that produce silk, a jagged and scaly translucent exoskeleton, and comparatively massive (given its diminutive size) antennae that are used to feel its way through the dark because it lacks eyes. Its mouth, unlike other millipedes that chew with developed grinding mouthparts, is rudimentary and fused into structures that are probably used for piercing and sucking plant or fungal tissues.

This rare and ancient-looking creature's home is California, on the outskirts of Silicon Valley. The species is exceedingly scarce and limited to just a single tiny area near San Juan Bautista, just east of the San Andreas Fault. Based on the known environmental conditions where it lives, the species' probable distribution elsewhere in California was inferred. Yet still restricted to a small geographical range, the analysis indicated other areas of suitability limited to the terrestrial areas on the edge of Monterey Bay eastward to San Juan Bautista and throughout the Salinas Valley. What's unique about this area, and seems to be correlated with the model's area of highest suitability, is the thick layer of fog that accumulates in the area--like soup in a deep bowl. The fog and the species' unique set of features in its habitat (oak forests, sandstone boulders, and fine sandy soil) make this area a special place and certainly deserving of attention as the home of this rare and superlative beast.


'/>"/>
Contact: Dr. Paul Marek
paulemarek@gmail.com
Pensoft Publishers
Source:Eurekalert  

Related biology news :

1. Parkinsons disease stopped in animal model
2. Study suggests why some animals live longer
3. Are we really a nation of animal lovers?
4. NOAA discovers way to detect low-level exposure to seafood toxin in marine animals
5. China poised to accept first-ever non-animal test method for cosmetics
6. Elephant seal tracking reveals hidden lives of deep-diving animals
7. Deep sea animals stowaway on submarines and reach new territory
8. T cells hunt parasites like animal predators seek prey, a Penn Vet-Penn Physics study reveals
9. Animal reservoir mystery solved
10. WALTHAM® demonstrates commitment to scientific dialogue and exchange at international human animal interaction conference
11. Environmental concerns increasing infectious disease in amphibians, other animals
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
The leggiest animal on Earth lives in the outskirts of Silicon Valley
(Date:2/2/2016)... Feb. 2, 2016  Based on its recent ... Sullivan recognizes US-based Intelligent Retinal Imaging Systems (IRIS) ... Award for New Product Innovation. IRIS, a prominent ... North America , is poised to set ... diabetic retinopathy market. The IRIS technology presents superior ...
(Date:1/28/2016)... JOSE, Calif., Jan. 28, 2016 Synaptics (NASDAQ: SYNA ... results for its second quarter ended December 31, 2015. ... second quarter of fiscal 2016 increased 2 percent compared to the ... second quarter of fiscal 2016 was $35.0 million, or $0.93 per ... Non-GAAP net income for the first quarter of fiscal 2016 grew ...
(Date:1/22/2016)... 22, 2016 ... of the  "Global Behavioral Biometric Market ... --> http://www.researchandmarkets.com/research/4lmf2s/global_behavioral ) has announced ... Biometric Market 2016-2020"  report to their ... Markets ( http://www.researchandmarkets.com/research/4lmf2s/global_behavioral ) has announced the ...
Breaking Biology News(10 mins):
(Date:2/11/2016)... , Germany and ... QGEN ; Frankfurt Prime Standard: QIA) today ... Targeted RNA Panels for gene expression profiling, expanding QIAGEN,s ... (NGS). The panels enable researchers to select from over ... changes and discover interactions between genes, cellular phenotypes and ...
(Date:2/11/2016)... 11, 2016  Dovetail Genomics™ LLC today announced that ... for a planned metagenomic genome assembly service. Richard ... genome assembly method in a talk on Friday, February ... Technology conference in Orlando, Fla. ... datasets is difficult. Using its proprietary Chicago ...
(Date:2/11/2016)... (PRWEB) , ... February 11, 2016 , ... ... of its new stem cell treatment clinic in Quito, Ecuador. The new facility ... and trauma applications to patients from around the world. , The new ...
(Date:2/10/2016)... , Feb.10, 2016 ASAE is introducing ... Association Management Companies (AMC) the option of joining or ... annual fee determined by staff size, every employee in ... join ASAE and reap all available member benefits.   ... "Our new organizational membership options will allow organizations of ...
Breaking Biology Technology: