Default Animations on HTC phones?? Can you add them seperately?

So, apparently every single android phone I know has the zoom animation when starting or closing an animation, except of HTC phones. Is there any reason for that? Even the stock android UI has it. Also there is no animation when going from Portrait into landscape mode.

Why is it like that? And is it possible to add these?

Btw: I'm currently using Virtious 1.31