Latest University of Utrecht in the Netherlands Stories
A new study shows that wild orangutans in Borneo hold leaves to their mouths to make their voices sound deeper than they actually are. According to the scientists that observed the apes, the animals employ the leaf trick when predators threaten them. Holding leaves to their mouths enables the orangutans to lower the frequency of the sound they make. This strategy makes the apes appear to be a bigger target than they are to the predator. The apes make the sounds in response to approaching...
- Like a worm in form or movement; vermiform; tortuous or sinuous; also, writhing or wriggling.
- Like the track or trace of a worm; appearing as if worm-eaten; vermiculate.
- Marked with fine, close-set, wavy or tortuous lines of color; vermiculated.
- A form of rusticated masonry which is so wrought as to appear thickly indented with worm-tracks.