Bees taking a break
© Getty
After a busy day of plant hopping for delicious nectar, these cuckoo bees are taking a well-earned break on a branch. These bees share a particular parental trait with their avian namesakes. Female cuckoo bees are kleptoparasitic: instead of establishing a hive, they invade another, take it over and lay their eggs for another bee species to raise as its own.