Volume 4 (2006) - March 2006
Tod R Clapp, Kathryn F Medler, Sami Damak, Robert F Margolskee, Sue C Kinnamon BMC Biology 2006, 4:7 (30 March 2006)
Taste receptor cells in mice for bitter, sweet and umami use G-protein coupled receptors but lack calcium currents and presynaptic SNAP-25 protein, indicating that they do not use conventional synapses to relay taste stimuli.
Ronald M Bonett, Paul T Chippindale BMC Biology 2006, 4:6 (2 March 2006)
Whether a salamander remains in aquatic form or metamorphoses depends on the nature of the local streambed sediment, demonstrating how habitat changes drive evolution, potentially resulting in speciation.