by Richard William Nelson | May 22, 2012
Andrew J. Wendruff and Mark V. H. Wilson of the University of Alberta added a new dimension to the ongoing coelacanth saga this week in the paper “A fork-tailed coelacanth, Rebellatrix divaricerca,” published in the Journal of Vertebrate Paleontology.
In the paper, Wendruff and Wilson present a newly discovered coelacanth species found surprisingly on the rocky slopes of the Canadian Rockies, British Columbia.
The species named Rebellatrix divaricerca means “rebel coelacanth (with a) forked tail.” Far different from today’s Indian Ocean coelacanths, these ancient rebel fast-swimming predators further undermine attempts to develop a cohesive coelacanth evolution saga.
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by Richard William Nelson | Apr 3, 2012
The sequence of biological events leading to hominin locomotion has long intrigued evolution scientists.
Last week, the journal of Nature reported on a hominin-like foot discovered in Eastern Africa.
Entitled “A new hominin foot from Ethiopia shows multiple Pliocene bipedal adaptations,” the finding raises questions about the evolution of hominin locomotion.
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by Richard William Nelson | Mar 13, 2012
The “Insights into hominid evolution from the gorilla genome sequence” report, published by the British journal Nature this last week, stands as a historical milestone in the study of human origins, sequencing the gorilla genome.
Aylwyn Scally (pictured right below) at the Wellcome Trust Sanger Institute led the research team to complete the gorilla genome sequence project, the last genus of the living great apes to have its genome decoded. The use of gorilla genome sequences, Scally explains –
“Will promote a deeper understanding of great ape biology and evolution.”
The findings change the evolution narrative.
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by Richard William Nelson | Dec 11, 2011
Anomalocaris, an ancient three-foot-long shrimp-like creature, is an evolution anomaly. Anomalocaris (pictured left) is Greek for “anomaly shrimp.”
The origin of this marine creature’s compound eye, a species first discovered by Charles Doolittle Walcott in the Canadian Rockies at an elevation of over 7,000 feet above sea level, has long puzzled evolution scientists. Where did the freakish eyes originate, and how did they end up in the Canadian Rockies?
The findings have no natural explanation.
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by Richard William Nelson | Sep 18, 2011
In the journal Science September 9 edition, a collection of reports generated a storm of controversy on the evolution status of Australopithecus sediba. Nicknamed Karabo, meaning “answers,” the fossils have emerged as the latest human ancestor candidate.
While last week’s topic focused on Karabo’s transitional links, this week examines the dating of these two remarkable fossilized skeletons recovered from the Malapa site in South Africa.
The Karabo dating surprised the investigators.
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