They show great endurance when ridden, and are relatively hardy, accepting outdoor living and changes in climate.

While relatively hardy, it does not react well to wind, salt, or frost.

C. australis is a relatively hardy species and a popular landscape and container plant.

Despite their small size the fry are relatively hardy and grow quite quickly, and after a week they will take brine shrimp without any problem.

They are a relatively hardy species that adapts well to captivity, readily feeding in commercially available rats.

And all things considered, Mr. Dylan is a relatively hardy survivor.

The species is relatively hardy and easy to keep in cultivation.

They are a relatively hardy fish whom prefer weakly alkaline pH conditions.

Both are relatively hardy and fast-growing.

This species is a relatively hardy member of the Tridacnidae family.