Why do juvenile bats sometimes attempt to drink from smooth, non-liquid plates placed in the jungle?

Answer

They are hardwired to perceive any acoustically smooth surface as water

Young bats are apparently hardwired to perceive any acoustically smooth surface as water, causing them to dive straight into non-liquid plates attempting to take a drink.

Why do juvenile bats sometimes attempt to drink from smooth, non-liquid plates placed in the jungle?
mammalflightabilitybatecholocation