Tetrapods that have returned to aquatic environments have developed a number of morphological and behavioral changes during the early colonization of this environment and thereafter in the maintenance and diversification of aquatic habitats.
In the past decades, an increase in integrative studies of paleobiology and comparative anatomy, combined with sedimentological, taphonomic and paleoecological data, have allowed important insights through comparison of lifestyles and morphology in different groups. This is very interesting considering that several tetrapod groups have undergone similar evolutionary histories upon returning to the aquatic environment and in their subsequent diversification. On the other hand, fruitful work has been conducted seeking the comprehension of how global or regional oceanic events have influenced coetaneous fauna alike throughout geologic time.
Since 1996 the meetings on the Secondary Adaptation of Tetrapods to Life in Water, also known as SECAD, have been a refreshing, relaxed and productive space to share all these experiences, comparing different methodological approaches and particularities of the different aquatic tetrapods in a desirable exchange of integrative information. Because of the specific themes and not so grandiose format (under 200 participants), these meetings have a great potential to be a platform to establish an exchange of ideas and possibilities for new collaborations.
Next year (2021) we will have the pleasure to host the first SECAD meeting in South America! The 9th SECAD will be held in Chile. We are very proud of this opportunity and will be eager to share our own results from this edge of the Pacific!
Background picture: ©Martin Chavez