After the success of The Secret Life of 4 Year Olds series and Christmas special last year, here’s another 10 four-year-olds meeting for the first time.

As they make new friends, fight for territorial rights of a treehouse and watch chicks hatch in the classroom over the course of a week, it seems they’re just playing.

In reality, they’re learning social skills and all about birth, life and even death.

There’s also a marriage proposal! As with the previous series, it’s fascinating to watch – what makes Taysia shy and hesitant, for example, while confident Fabian keeps disrupting the group?

Is it really as simple as dividing people into ‘orchids’, who only thrive in certain situations, and the tougher ‘dandelions’?