They are a slinger (together).
(Calling two people a slinger praises how well they work together and complement each other.)

If you hesitate doing something, it might not be important to you.
(Of course, we often hesitate with things that are in fact important to us, because we're afraid to fail. So this proverb is more meant/used as a motivation for someone hesitating, or even as a teasing to get someone into action)

(Like) a tapirus in the clouds
(“Fish out of water”; something or someone out of their usual element or comfort zone.)

Like a slinger without a head
(Like a slinger without a head—i.e., completely lost.)

A: Have you heard that Ralu has the hots for Tsenu?
B: Old news, brother! I've known it for a week.

Only sleep if you are familiar with the Thanator.

One can't hang by a tail.

Slow tail!
(That is, “Don't get angry.” When the Na'vi get angry, their tails whip around, so “slow down your tail” is another way to say calm down.)

A coward commands from the canopy.

After the death of his spouse, he felt completely lost.

A fool jumps onto a thin vine.

They hunted two sturmbeest? Wow, they work very well together.

That hexapede is running toward the cliff.

Hexapede in a storm
(a metaphor or simile representing extreme panic, anxiety or timidity.)

an animal cry in the forest
(Old news)