Blackbird eating a ripe fig. 1  As well as scratching up your vegetable beds in search of worms blackbirds will readily eat a variety of ripe fruits including tomatoes. They are by far the biggest threat to my tomato crop and if not checked can cause a lot of damage.
Dwarfism can be caused by more than 200 different conditions, but there are two causes that are most commonly seen in humans. The first main cause is achondroplasia, which accounts for about 70% of drawfism cases.
Genes Can Cause Height Extremes. Very short or tall people may have conditions called dwarfism or gigantism, respectively. About one in 15,000 people have dwarfism, defined as an adult height of 4 feet 10 inches or less. Genetic mutations that cause bones to grow short are the main causes, according to Michael J. Goldberg, MD, chief of the Skeletal Dysplasia Clinic at Seattle Children's Hospital.