Should "suggest" here be "suggests"?

[NewHopeR]

Context:
The month in which you are born can influence the environment in which you develop – inside the womb and out. Some evidence suggest that this can affect your behaviour and genetics and have a lifelong impact on your health.

[bhaisahab]

Context:
The month in which you are born can influence the environment in which you develop – inside the womb and out. Some evidence suggest that this can affect your behaviour and genetics and have a lifelong impact on your health.

Yes, it should. What intrigues me, though, is how the month in which you are born can affect your development pre birth (in the womb).

[emsr2d2]

Apart from being a load of old nonsense, it should surely be the month in which you are conceived which matters. I suppose you could make an argument for saying that if we know the month of birth then we can calculate the month of conception anyway.