Perhaps the most famous migrant of this type is the monarch butterfly, Danaus plexippus, of North America (Brower and Malcolm, 1991). Monarch larvae feed on milkweeds and the timing of migration coincides with seasonal milkweed growth. In autumn, adult butterflies from as far north as eastern...
Preserved in a butterfly position, the jaws are seemingly connected axially and posteriorly by a single elongate rod-like structure with a terminal bulbous section (Fig. 5a, b, d). The rarity of specimens with preserved teeth, evident in only two specimens, is puzzling considering that other ...
Catastrophe model Fold Cusp Swallowtail Butterfly Elliptic Hyperbolic Parabolic Potential functions V(x) = x3 + vx V(x) = x4 + μx2 + vx V(x) = x5 + μx3 + vx2 + ωx V(x) = x6 + tx4 + μx3 + vx2 + ωx V(x, y) = x3 − xy2 + w(x2 + y2) + μx + υy V...