FILE - Flora the Komodo dragon walks around her enclosure at Chester Zoo in Chester, England, Monday Dec. 18, 2006. Flora's virginal conception, and that of another Komodo dragon earlier in the year at the London Zoo, are the first time it had been documented in Komodo dragons. (AP Photo/Dave Thompson, File)
FILE - This 2015 photo provided by the Missouri Department of Conservation shows a female yellow-bellied water snake at the Cape Girardeau, Mo., Conservation Nature Center that for the second time in two years has given birth without any help from a male member of the species, conservationists say. (Candice Davis/Missouri Department of Conservation via AP, File)