It's the British English form even though it's not as commonly used anymore:
https://www.macmillandictionary.com/pronunciation/british/homo-sapiens
https://www.oxfordlearnersdictionaries.com/definition/english/homo-sapiens
https://dictionary.cambridge.org/amp/pronunciation/english/homo-sapiens
Though it is used in talks like the below:
This all started from someone correcting me for using 'sape' and me looking it up thinking they were mad only to find that it is in fact the BE distinction. Which kind of blew me away as it sounded ridiculous on initial hearing.
Right, Ok but despite what that Tory sounding prick in the video says, I've lived in the UK for my 29.5 years of existence and have never heard it pronounced that way once.