Two new studies from the Indian Institute of Bombay (IIT Bombay), Mumbai, show the importance of defects in the arrangement of atoms in a crystal, called dislocations, in shaping the physical properties of metallic alloys.
A pair of Crested treeswift with its egg [Image credits: Aditya Pal / CC BY-SA 4.0]
Mathematical models show that males should be selected to care more for their offspring rather than desert them.