Well, day length in Madagascar is longer than in UK so they may feel that getting day/night mix right has some impact. Often it has to do with breeding
I think six in all. 2 males and 4 females. There are 4 enclosures which house Aye Ayes (3 indoors on Malagasy time and then this one), 3 of which are shared with Malagasy Giant Jumping Rats.
I think the Aye-ayes do have a reversed day/night, being on "Madagascar time" means they are not simply kept on a 12/12 light cycle but that their lighting regime is changed incrementally across the year to simulate the day length throughout the year in Madagascar.
There are a number of other species that this is done for.
Have the aye-ayes in Jersey bred in the last years? The only births in europe I could find were in Bristol (I think 2 youngs raised in the las years) and now one in Frankfurt. Which is not nearly enough to keep the species viable.
M
Martin.
Are you sure the rats are exhibited here ?
Cause I've visited Durrell in October, and I have seen only one aye-aye, and no rats. No signage too.