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Wombat Video Activity

Examining a primary source In 2011, scientists in Australia unearthed the nearly complete remains of a “giant wombat,” or Diprotodon optatum, which roamed the Earth two million years ago.…

ninebark

(Encyclopedia) ninebark, any plant of the genus Physocarpus of the family Rosaceae (rose family). Ninebarks are North American (one is Asian) deciduous, hardy, spring-blooming shrubs, with thin bark…

athlete's heart

(Encyclopedia) athlete's heart, common term for an enlarged heart associated with repeated strenuous exercise. As a result of the increased workload required of it, the heart will increase…

Mundell, Robert A.

(Encyclopedia) Mundell, Robert A., 1932–2021, Canadian economist, b. Kingston, Ont., Massachusetts Institute of Technology (Ph.D. , 1956). He taught at…

rose of Sharon

(Encyclopedia) rose of Sharon, common name for several plants, especially Hibiscus syriacus, of the family Malvaceae (mallow family), and for St.-John's-wort, i.e., any species of the genus Hypericum…

Šafařik, Pavel Josef

(Encyclopedia) Šafařik, Pavel JosefŠafařik, Pavel Josefpäˈvĕl yôˈzĕf shäˈfär-zhēk [key], 1795–1861, Czech philologist and archaeologist; his name is also spelled Schafarik and Schafřík. Šafařik…

salpiglossis

(Encyclopedia) salpiglossissalpiglossissălˌpəglŏsˈəs [key], any plant of the genus Salpiglossis of the family Solanaceae (nightshade family), herbs native to Chile and widely cultivated elsewhere as…

transcendentalism , in philosophy

(Encyclopedia) transcendentalism, in philosophy, term descriptive of systems that hold that there are modes of being and principles of existence beyond the reach of mundane experience and…

screwpine

(Encyclopedia) screwpine, any plant of the genus Pandanus, tropical shrubs or trees characterized by aerial prop roots, ranging throughout the Old World tropics, especially in the Pacific. The…

secretary bird

(Encyclopedia) secretary bird, common name for a long-legged African bird, Sagittarius serpentarius, related to the hawk and about 4 ft (122 cm) tall. Its crest of black feathers suggested the quill…