Galapagos Day 4+: Land iguana

Galapagos Day 4+: Land iguana

On our hike to Volcan Chico on Isabela yesterday, we saw our first land iguana, Conolophus subcristatus, in a dry habitat beneath scrubby shrubs. Another species found only on the Galapagos Islands, these iguanas can interbreed with the marine species (surprising since they are a different genus) but the hybrid offspring are sterile. This suggests that the land and marine iguanas shared a common ancestor, a question that could be answered by DNA testing.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s