Well this could be an advantage to the insects because the insects can conceal with the color of the sticks. This trait could have evolved the through natural selection because its a chance of staying alive.
An exclamation used as a greeting, to call attention, as an exclamation of surprise, or to encourage one. This variant of Halloo and Holloo has become the dominant form. In the United States, it is the most common greeting used in answering a telephone.
And a big hello (= welcome) to all the parents who've come to see the show. A1 something that is said at the beginning of a phone conversation: Hello, I'd like some information about flights to the US, please.. âº something that is said to attract someone's attention: