'Missing Link.'

'Missing link' gene found that triggered leap in intelligence two million years ago - and allowed early humans to start talking

The vital duplicate gene is believed to have driven intelligence and developed two to three million years ago at a critical stage in the evolution of our species, say Washington researchers.
NOTE! 'Is believed to have'. This is an opinion! Nothing more. Yet those who are less than convinced by the claims of evolutionary science are pilloried when they point out that so much stated as 'true' is simply a different form of FAITH!