Concentrations of polychlorinated biphenyls (PCBs), DDT and its metabolites (DDTs), HCH isomers (HCHs), chlordane compounds (CHLs) and hexachlorobenzene (HCB) were determined in sediment, soil, whole body homogenates of resident and migratory birds and their prey items (including fish, green mussel, snail, earthworm, crabs, prawn, lizard and frogs), bird eggs and bats collected from southern India
Common garden earthworms ooze nitrous oxide, commonly known as laughing gas. As a greenhous gas, these exhalations could contribute to global warming, German researchers warned the recently-concluded
Continuing the series on organic farming, Down To Earth's reporter found that both the scientific community and farmers are showing interest in using biofertilisers and vermiculture to substitute for chemical fertilisers. Microorganisms like algae are use
biological sciences Water bears in space Life for a certain kind of tiny invertebrates is possible in space. About 1.5 mm long water bears were found to survive there, a European Space Agency (esa) experiment showed. This makes the eight-legged invertebrates, also called tardigrade, the first animals known to survive the harsh combination of low pressure and intense radiation.
