Thursday, July 30, 2009

More Monarch updates.

Many of our Monarch larvae are progressing into their second and third instars. An instar is the period between molts. The first instar denotes the period between when the larvae hatches from its egg and its first molt. Monarchs have 5 instars. Each molt is usually acompanied by some noticeable change in morphology, morphology is a scientific term that means structure or shape. For instance in the second instar Monarch larvae the tubercles appear (protrusions above their heads that look like antennae).

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