Coral reefs are also very important to people. The value of coral reefs has been estimated at 30 billion U.S. dollars and perhaps as much as 172 billion U.S. dollars each year, providing food, protection of shorelines, jobs based on tourism, and even medicines.
Bumblebee is one of the smallest and physically weakest Autobots. While his stature allows him to do his job better than most Autobots could manage, he is self-conscious about his size. Maybe this is why he makes fast friends among the humans.
Bumblebees do not swarm. Some species like Tree bumblebees (Bombus hypnorum) have distinct mating behaviour in which male bumblebees from all around will seek out a nest and fly around outside. They dance around in the hope that they will get a chance to mate with a new queen as she leaves the nest.