Palaeontology: New fossil finds in old rocks
نویسندگان
چکیده
منابع مشابه
An old emperor finds new clothing: rejuvenation in our time.
T o cast this sage historical advice into contemporary terms, the eternal human predisposition to believe in flimsy promises of rejuvenation needs to be well understood, or repeated. As an ingenious species, we have made grand advances in overcoming the physical limits of our biology. Yet while technology has overcome our native ponderous, gravityand land-bound locomotion with air, land and sea...
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The study of fossilized ontogenies in mammals is mostly restricted to postnatal and late stages of growth, but nevertheless can deliver great insights into life history and evolutionary mechanisms affecting all aspects of development. Fossils provide evidence of developmental plasticity determined by ecological factors, as when allometric relations are modified in species which invaded a new sp...
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acteristic of the New World fauna as hummingbirds (Trochilidae). These ‘flying jewels’ are classified into more than 300 modern species, most of which occur in South and Central America from where some have colonised North America (Schuchmann 1999). Hummingbirds do not occur in the Old World today, although the completely unrelated sunbirds (Nectariniidae) or even the hummingbird hawk-moth Macr...
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ژورنال
عنوان ژورنال: Nature
سال: 1986
ISSN: 0028-0836,1476-4687
DOI: 10.1038/319446a0