Mammals

Many reptiles are clearly related. How many basic kinds of mammal are there? What are their characteristics? When did they first appear in the fossil record? This display answers those questions. What are the limits of relatedness?

Click on one of the different mammal kinds, listed below, for more information.

Names in brown indicate all families in the kind are extinct.
Names in blue indicate kinds with families that are alive today.

create("animals"); $sql->Query("Select kindNumber, kindName, extinct from mammal_kinds order by kindNumber"); for ($i = 0; $i < $sql->rows; $i++) { $sql->fetch($i); $num = $sql->data[0]; $name = $sql->data[1]; $extinct = $sql->data[2]; if ($extinct == "1") { echo("$num $name
"); } else { echo("$num $name
"); } } ?>