Assertion: cockatoo | /r/HasAspect | hooked bills
Facets:
Source sentences:
text: While psittaciform parrots and cockatoos have many common anatomical attributes like zygodactyl feet and hooked bills, the cockatoos and parrots diverged from the ancestral parrots as separate lineages as early as 45 MYA (fossil record) or 66 MYA (molecular analysis) (Wright 2008) during the period when Australia, South America and Antarctica were breaking away from the super-continent Gondwanaland where the ancestral parrots were believed to have evolved.