Assertion: viper's mouth | /r/CapableOf | open nearly 180°
Facets:
value: during a strike
type: TEMPORAL
Source sentences:
text: During a strike, the mouth can open nearly 180° and the maxilla rotates forward, erecting the fangs as late as possible so that the fangs do not become damaged, as they are brittle.
text: Their mouths can open nearly 180 degrees
text: The fangs can rotate as a pair or individually, during a strike the mouth of the viper can open to nearly 180 degrees, the fangs then rotate out at a precise time, to not damage the fangs, and the snake bites down clamping its jaws tightly excreting the poison from the glands.