morphological study of fossilized walchia piniformis foliage from the permian of saxony - fossilized remains of an early coniferous plant - 博物學家 幅插畫檔、美工圖案、卡通及圖標
dental morphology of a juvenile mastodon from the pliocene epoch - top-down view of the third milk-molar from the upper left jaw of mastodon arvernensis - 博物學家 幅插畫檔、美工圖案、卡通及圖標
representative marine fauna from the cambrian period including sponges and brachiopods - 博物學家 幅插畫檔、美工圖案、卡通及圖標
vapourer moth (orgyia antiqua): one of the most extreme examples of sexual dimorphism in the insect world - 博物學家 幅插畫檔、美工圖案、卡通及圖標
skeletal reconstruction and anatomical features of the marine reptile ichthyosaurus communis from the lias - 博物學家 幅插畫檔、美工圖案、卡通及圖標
pumas resting in a tropical forest – engraving from america: a general geography (1897) - 博物學家 幅插畫檔、美工圖案、卡通及圖標
portrait of charles darwin, english naturalist and geologist, best known for his contributions to evolutionary theory, vintage illustration 19th century - 博物學家 幅插畫檔、美工圖案、卡通及圖標
morphological characteristics of a living australian cycad showing its palm-like foliage and reproductive cone - 博物學家 幅插畫檔、美工圖案、卡通及圖標復古風格, 澳洲, 草圖
comparative dental anatomy of two predatory shark species from the miocene epoch - 博物學家 幅插畫檔、美工圖案、卡通及圖標化石
skeletal elements of an ancestral bat species from the eocene of france - fossilized skeletal remains of vespertilio parisiensis, an early bat species - 博物學家 幅插畫檔、美工圖案、卡通及圖標
stratigraphic cross-section of river terrace formations and quaternary sediment layers - 博物學家 幅插畫檔、美工圖案、卡通及圖標雕刻圖像
albrecht von haller (1708-1777), swiss naturalist, wood engraving, published in 1854 - 博物學家 幅插畫檔、美工圖案、卡通及圖標
johann matthäus bechstein (1757-1822), german naturalist,wood engraving, published 1854 - 博物學家 幅插畫檔、美工圖案、卡通及圖標
edwin lankester m.d. in a formal engraved portrait — the bearded english physician and naturalist looks forward with calm scientific authority - 博物學家 幅插畫檔、美工圖案、卡通及圖標
skeletal morphology and incurved valve structure of the fossilized oyster gryphaea incurva from the lias - 博物學家 幅插畫檔、美工圖案、卡通及圖標
morphological diversity of fossilized angiosperm leaves from the cretaceous period - 博物學家 幅插畫檔、美工圖案、卡通及圖標
short-beaked echidna (tachyglossus aculeatus) — 1890 engraved natural history illustration - 博物學家 幅插畫檔、美工圖案、卡通及圖標
life cycle and habitat impact of hylesinus varius (historically and in your image referred to as hylonomus fraxini or hylesinus fraxini), commonly known as the ash bark beetle - 博物學家 幅插畫檔、美工圖案、卡通及圖標
highly magnified view of a spider's spinneret, specifically from a gossamer spider - 博物學家 幅插畫檔、美工圖案、卡通及圖標
zoophyte-trough, a specialized piece of equipment used by 19th-century microscopists to observe small aquatic organisms - 博物學家 幅插畫檔、美工圖案、卡通及圖標
the life cycle and reproductive structures of ulothrix, a genus of filamentous green algae commonly found in fresh and marine waters - 博物學家 幅插畫檔、美工圖案、卡通及圖標
skeletal posture and anatomy of a giant ground sloth from the pleistocene of south america - 博物學家 幅插畫檔、美工圖案、卡通及圖標
biological illustration of a maggot (the larva of a fly, typically a housefly) highlighting its tracheal system - 博物學家 幅插畫檔、美工圖案、卡通及圖標
morphological characteristics and defensive ornamentation of the fossilized gastropod typhis tubifer from the eocene - 博物學家 幅插畫檔、美工圖案、卡通及圖標
microscopic view of shells in a transparent slice of carboniferous limestone from indiana - 博物學家 幅插畫檔、美工圖案、卡通及圖標
specialized type of wing scale from the large white butterfly (pieris brassicae), specifically an androconial scale or scent scale - 博物學家 幅插畫檔、美工圖案、卡通及圖標
morphological characteristics and shell architecture of the fossilized land snail cyclostoma arnoudii from the eocene - 博物學家 幅插畫檔、美工圖案、卡通及圖標
specific moment in the life cycle of the large white butterfly (pieris brassicae), also known as the cabbage white - 博物學家 幅插畫檔、美工圖案、卡通及圖標
section of coniston limestone from keisley, westmoreland, showing fossilized crinoid stems in a coarsely crystalline matrix - 博物學家 幅插畫檔、美工圖案、卡通及圖標
