2.5 year old syrian suddenly trying to climb lid of enclosure

[HamsterNewB]

Hi all,

My 2.5 year old Syrian is in a Ikea Detolf with high safe bedding, a big wheel, the proper dry and fresh food, water, sand bath, etc.

He has loved his enclosure for the past 2.5 years but has suddenly started to climb on the lid, like he's trying to get out.

Any idea what causes this behavioural change?

Not sure how to make him comfier as he's quite old now and was happy before.

Just to add the behaviour isn't excessive, just strange.

Thanks for any ideas or insights!