Thatâs a loss of $90K in cash over three months â a burn rate of $30K per month. From a cash runway perspective, that suggests that the company now has just over three months of cash on hand. They need to reduce their burn rate and get cash flow positive soon.
Sheep and goats, cattle and pigs: 9000-7000 BC. The first animals known to have been domesticated as a source of food are sheep in the Middle East. The proof is the high proportion of bones of one-year-old sheep discarded in a settlement at Shanidar, in what is now northern Iraq.
Our series, Animals in Research, profiles the top organisms used for science experimentation. In this instalment, we look at the original lab rats: Rattus norvegicus. Rats have a long history in medical research: they were the first mammalian species specifically domesticated to be used in the laboratory. Records dating back to the 1850s show these animals were derived from those bred by rat fanciers who collected them for their unique coat colours and behavioural characteristics.