The meaning of ONCE BITTEN, TWICE SHY is —used to mean that a person who has failed or been hurt when trying to do something is careful or fearful about doing it again.
A flightless bird evolved twice over different parts of history.Credit: Charles J Sharp [CC BY-SA 4.0 ] Around 136,000 years ago, a flightless bird became extinct. The bird resided on the Indian Ocean atoll of Aldabra, which had its flora and fauna wiped out when the island was complete...