Nalini Nadkarni, an Indian-origin forest ecologist, has been part of a team of female scientists advising Barbie dolls' maker Mattel on the line of dolls that includes a marine biologist, astrophysicist, photojournalist, conservationist and entomologist. Nadkarni re-fashioned a Barbie doll as a scientist-explorer for the first time after her 6-year-old daughter had asked for a Barbie doll.