Age class

Individual

Task

Tube/toy

Intention

Means-end

Session

1

2

1

2

3

4

5

6

7

Subadult

Bruce (pr m)

Yes

1 (21)

Yes

Yes

Yes

Luke (pr m)

Yes

5 (21)

Yes

Yes

no

no

Yes

Juvenile

Frowin (pr m)

Yes

3 (21)

Yes

Yes

Yes

Pick (hr m)

Yes

4 (21)

no

Yes

Yes

Zappel (hr m)

Yes

6 (21)

no

Yes

no

Yes

Kermit (hr m)

Yes

7 (21)

Yes

no

no

no

Yes

Linus (hr m)

Yes

3 (21)

no

no

no

no

no

no

no

no

D/Yes

Adult

John (pr m)

no

0 (21)

no

no

no

no

no

no

D/no

D/Yes

Knut (pr m)

no

0 (21)

no

no

no

no

D/no

D/Yes

Mismo (pr m)

Yes

1 (6)

no

no

no

Yes

Kima (pr f)

no

0 (21)

Sepperl (pr m)

no

0 (21)