Assertion: bottlenose dolphin's signature whistle | /r/HasProperty | developed
Facets:
value: during a dolphin's first year
type: TEMPORAL
Source sentences:
text: These signature whistles are developed during a dolphin's first year; it continues to maintain the same sound throughout its lifetime.
text: These signature whistles are developed during a dolphin's first year; it continues to maintain the same sound throughout its lifetime.