科

Anatidae (family of birds including ducks, geese and swans)

Testudinidae (family comprising the tortoises)

Onagraceae (evening primrose family)

Alangiaceae (Alangium family)

Aquifoliaceae (holly family)

Celastraceae (plant family); bittersweet

Clethraceae (white alder family)

Ebenaceae (family of flowering plants including the ebony)

Ginkgoaceae (family of flowering plants whose only extant member is the ginkgo)

Hamamelidaceae (witch-hazel family)

Magnoliaceae (magnolia family)

Melastomataceae (melastome family)

Myricaceae (wax-myrtle family)

Tiliaceae (family of flowering plants, incl. the linden)

big science (particle accelerators, space telescopes, etc.)

Meliphagidae (honeyeater family of birds)

Colubridae (family of snakes)

Phocidae (family of seals)

Monodontidae (cetacean family comprising the narwhal and white beluga whale)

Centrophoridae (family of generally deepwater gulper sharks)

Hexagrammidae (family of marine fishes incorporating the greenlings)

Chimaeridae (family of shortnose chimaeras, cartilaginous fish with short round snouts)

Heterodontidae (family of bullhead sharks)

Pseudocarchariidae (family whose only member is the crocodile shark)