Translation:Some women are taller than men.
I guess it should be "decât" here for comparative (smarter than), and "ca" (normally for egality, as smart as) is just a common mistake in spoken language. So this is they are "taller as men" which is not correct in English either...
In German (als/wie) and Dutch (dan/als), many native speakers make the same "mistake" according to formal grammar, but the "wrong" form in standard language is simply correct in some dialects.
This is actually a new rule introduced ad hoc by people who believe 'ca' sounds too street. It could be that the new generation will learn this rule in schools. But the older generation like me will continue to use the form we were used to, that is using the perfectly acceptable 'ca' in comparing different things.
Not necessarily, and not in this case. Different languages use their definite articles somewhat differently. In this case English uses no articles to refer to the general category (Lions are big cats). But in Romanian to refer to the same general category of objects we need the definite article ( Leii sunt pisici mari).
It is the same case here. Women are taller then the general category of men. English askes for no article, while Romanian needs the definitite article