Results 21 to 30 of about 21,547 (296)
A modified trap design for sampling subterranean habitats for central Texas Eurycea salamanders [PDF]
In this paper, we describe modifications to a sampling technique for surface, stream-dwelling salamanders for use in subterranean settings. Leaf litter bags are an effective and commonly used trap for salamanders, and their construction purposefully ...
Ryan M. Jones+3 more
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The sudden appearance of fossils that marks the so-called 'Cambrian explosion' has intrigued and exercised biologists since Darwin's time. In On the Origin of Species, Darwin made it clear that he believed that ancestral forms 'lived long before' their first fossil representatives.
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For a finite Coxeter group W and a Coxeter element c of W, the c -Cambrian fan is a coarsening of the fan defined by the ...
Nathan Reading, David E. Speyer
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Accessing Heart Health: A Northern Experience
Background and Research Purpose: Coronary heart disease (CHD) continues to be a major cause of death and disability across the globe. Regional differences in CHD exist throughout Canada, including Ontario. It is important to explore the complex interplay
Katherine Timmermans+6 more
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Based on the 4 measured profiles, 17 observation profiles, and 13 drilling core macroscopic and microscopic characteristics of the Cambrian Longwangmiao Formation in the Sichuan Basin, combined with analysis and testing, and reservoir logging ...
Qiang Wang+3 more
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What is it? Many things, but all connected to the emergence of the principal metazoan phyla, that is the assembly of the triploblastic body plans in three superclades — deuterostomes (you and sea-urchins), ecdysozoans (worm, flies and, oh yes, penis worms), and lophotrochozoans (annelids, brachiopods, molluscs).
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Sedimentary characteristics and development model of Cambrian gypsum-salt rocks, Tarim Basin
The Cambrian gypsum-salt rocks in the Tarim Basin are key geological elements to the pre-salt play typical marine evaporites, yet little attention has been paid to this set of evaporites.
Qi FAN+5 more
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Cambrian Chordates and Vetulicolians [PDF]
Deuterostomes make a sudden appearance in the fossil record during the Early Cambrian. Two deuterostome groups, the chordates and the vetulicolians, are of particular interest for understanding the evolutionary dynamics of the Cambrian evolutionary event.
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