What is an insect that carries pollen from one plant to another?

Honeybees are the main pollinators. That is why many consider the high bee Death Rate and loss of bee colonies a serious ecological problem, they are dying faster then new colonies can formed. Without them, the pollination of plants would almost com to a standstill.

There are birds that also perform pollination on some plants. Also many animals help with pollination when they forage for food and brush against flowers picking up pollen in their fur or skin and depositing it as they brush against more plants.