Taking a trick from birds and butterflies, a mollusk shines blue using intricate structures that allow selective reflection of light. But unlike other animals, the blue-rayed limpet, a snail that lives along the rocky shores of the northeastern Atlantic, creates functional iridescence using a hard mineral rather than an organic molecule such as a protein. The shell of the blue-rayed limpet, Patella pellucida, is largely made of calcium carbonate platelets. Just beneath the shell’s surface, materials scientist Ling Li of Harvard University and his colleagues […]
In a remote, wet evergreen forest in southern India, the male white-spotted bush frog calls to lure a female into his snug bamboo-stalk love nest. Entry is granted through a narrow opening probably bored by insects or rodents. Once inside, the tiny frogs mate in flood-proof confines. Dad cares for the eggs, which hatch directly into froglets — no tadpole stage involved in this dry bamboo nursery. Read the rest here. html. pdf.