17.6.2 The collapsing border model. In the collapsing border model, it is possible to specify borders that surround all or part of a cell, row, row group, column, and column group. Borders for HTML's rules attribute can be specified this way.
Cancel. Giraffes can live up to 26 years old in the wild, but they can live much longer in captivity where disease and predators are absent. Discover a giraffe's life cycle with information from an animal behavior specialist in this free video on zoo animals. Part of the Video Series: Zoo Animals.
The lizard with the shortest lifespan is the chameleon, which typically lives just one to three years in captivity. Most lizards live an average of 10 to 20 years. Geckos and iguanas both live into their teens or early 20s. Other lizards, such as the Mexican Beaded Lizard, sometimes live into their 30s.