Phylogenetics

Adaptations Biology Ecology Evolution Mating & Reproduction New Research Organisms

Some Echinoderms Will Never Grow Up

Some of us never grow up. In fact I am writing this now in my Aquaman pajamas while laying on Return of the Jedi bedsheets*.…

Adaptations Evolution New Research Seeps, Vent, & Whale Falls

Barnacle Evolution I: Phylogeny Served Without Plates

Kevin Zelnio January 10, 2011 Barnacle Best of Zelnio Darwin evolution Hydrothermal Vent Morphology Phylogenetics shell Stalked Barnacle Systematics taxonomy

Barnacle evolution was recently rewritten by a large effort of Perez-Losada and colleagues in 2008. Using a combination of genes and morphological traits they rejected…

New Research Organisms Plankton

What in Darwin’s Name Are Chaetognaths?!

Kevin Zelnio June 7, 2010 Best of Zelnio Cambrian Chaetognath Current Biology Deuterostome Ecdysozoa evolution fossil molecular phylogeny Phylogenetics Platyhelminthes Priapulida Protostome RB Editor's Selection

Lynn Margulis classified the Chaetognaths, known as arrow worms, as deuterostomes. Deuterostomy is characterized by several developmental characteristics including radial, indeterminate cleavage, a posterior position…

Deep Sea News

Tag: Phylogenetics

Some Echinoderms Will Never Grow Up

Barnacle Evolution I: Phylogeny Served Without Plates

What in Darwin’s Name Are Chaetognaths?!