Yeah you can get adoption leave. Not sure exactly how it all works but it does exist.

My company doesnt give out paid maternity leave and theyre really really narky about having you back part time after maternity leave. I groaned about and made a big fuss over it and they eventually let me have my same job back, but on a part time basis. I get really frustrated when friends of mine complain that they "only got 14 weeks of paid maternity leave" and I'm just thinking um thats more than what most people get - you should count yourself lucky!