英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Threatened Amphibians of the World – IUCN SSC Amphibian . . .
    In particular, this product would not have been possible without the expertise, knowledge and enthusiasm of the more than 500 herpetologists who contributed their time to the data collation and review process
  • Amphibians in Dramatic Decline; Up To 122 Extinct Since 1980
    data contributed by more than 500 of the world’s leading amphibian specialists, assessed each species for its level of threat, determined the distribution of each species, and gathered other essential ecological information ### Photos, B-roll, interviews, fact sheets, and region-specific information available to journalists upon request
  • Amphibian Extinctions: Key Findings from the Latest Report
    Four amphibian extinctions have been confirmed in the Global Amphibian Assessment, though as many as 223 amphibian species may have been lost As many as 222 amphibian species could already have gone extinct, and 2,873 are in danger of extinction, says the second Global Amphibian Assessment, which has been published on 4 October 2023 in the
  • Amphibian - Evolution, Classification, Adaptation | Britannica
    Amphibian - Evolution, Classification, Adaptation: Appearing during the Middle Mississippian Epoch, amphibians likely descended from aquatic tetrapods which had lungs and appendages with internal skeletal support The transition to terrestrial life included a stronger skeleton to counter the full effect of gravity, and changes to skin, feeding structures, and sense organs
  • AmphibiaWeb Database Search
    If more than one field is completed, they will be AND'ed together If you are looking for reptiles, please use the The Reptile Database Number of Records to Display Per Page:
  • Amphibians vs. Reptiles: 15 Key Differences, Examples
    More than 10,000 species of reptiles are known to live on earth, with the first reptiles observed about 312 million years ago Modern reptiles are divided into four orders based on their physical appearance
  • 12. 15: Amphibian Evolution and Ecology - Biology LibreTexts
    Evolution of Amphibians Fossil evidence shows that amphibians evolved about 365 million years ago from a lobe-finned lungfish ancestor As the earliest land vertebrates, they were highly successful Some of them were much larger than today’s amphibians For more than 100 million years, amphibians remained the dominant land vertebrates





中文字典-英文字典  2005-2009