Kempenaers said fidelity still exists in some species , notably swans and sea birds such as the albatross that mate for life and are never unfaithful to their partners .
Kempenaers said some species are still faithful , notably swans and sea birds such as the albatross , which mate for life and are never unfaithful to their partners .
Revenue jumped 26 percent to $ 817 million , the South San Francisco-based company said in a statement .