Assertion: eel's egg | /r/HasProperty | up to 2.5 mm
Facets:
Source sentences:
text: A prolarva, hatching from a relatively large egg (up to 2.5 mm [about 0.1 inch] in diameter), rapidly becomes a leaflike leptocephalus, which floats in the surface layers of the open ocean for as long as two and a half years before metamorphosing.