A study suggests that iron fertilization, the process of putting iron into the ocean to encourage the growth of carbon dioxide capturing alga blooms, could backfire. A new study on the feeding habits ...

UCLA graduate student Jeffrey Riffell and UCLA biology professor Richard Zimmer report the first experimental test on the role of small-scale physics as it influences the interactions between sperm ...

(A) Pollen grains generated from the stamen pollinate at the tip of the pistil. Pollen tubes grow inside the pistil towards the ovule located in the placenta. (B) The pollen tubes are guided to the ...