Some pesticides can be harmful to humans, but beer may be an organic solution to that problem, suggests a study published in Frontiers in Sustainable Food Systems. A team of researchers, led by Maite Gandariasbeitia from NEIKER-BRTA Basque Institute for Agricultural Research and Development in Spain, has investigated organic by-products of used beer grains (called bagasse) and canola (rapeseed oil) cakes, to find that they make a useful pesticide when mixed with cow manure.

In many species including humans, the cells responsible for reproduction, the germ cells, are often highly interconnected and share their cytoplasm. In the hermaphrodite nematode Caenorhabditis elegans, up to 500 germ cells are connected to each other in the gonad, the tissue that produces eggs and sperm.