Phylo.io: Interactive Viewing and Comparison of Large Phylogenetic Trees on the Web.

Phylogenetic trees are pervasively used to depict evolutionary relationships. Increasingly, researchers need to visualize large trees and compare multiple large trees inferred for the same set of taxa (reflecting uncertainty in the tree inference or genuine discordance among the loci analyzed). Existing tree visualization tools are however not well suited to these tasks.

[Effects of a single bout of aerobic exercise on body weight and blood pressure among healthy participants].

Background: Physical inactivity is a major risk factor and aerobic exercise is protective for cardiovascular health.

Aim: To determine the effects of aerobic exercise on systolic and diastolic blood pressure in children, adolescents and adults.

Material And Methods: We studied 13 children aged 10 ± 1.

Assessing the potential for egg chemoattractants to mediate sexual selection in a broadcast spawning marine invertebrate.

In numerous species, egg chemoattractants play a critical role in guiding sperm towards unfertilized eggs (sperm chemotaxis). Until now, the known functions of sperm chemotaxis include increasing the effective target size of eggs, thereby promoting sperm-egg encounters, and facilitating species recognition. Here, we report that in the broadcast spawning mussel, Mytilus galloprovincialis, egg chemoattractants may play an unforeseen role in sexual selection by enabling sperm to effectively 'choose' between the eggs of different conspecific females.