- Transitional features - Understanding Evolution
A fossil that shows an intermediate state between an ancestral trait and that of its later descendants is said to bear a transitional feature The fossil record includes many examples of transitional features, providing an abundance of evidence for evolutionary change over time Transitions in whale evolution
- Reconstructing vertebrates rise from the water to land
The team looked at how the bone changed over time and its effect on how these creatures likely moved A fossil humeri from an aquatic fish (Eusthenopteron), a transitional tetrapod (Acanthostega), and a terrestrial tetrapod (Ophiacodon) Credit: Stephanie Pierce The analysis covered the transition from aquatic fishes to terrestrial tetrapods
- Fish - Biological Diversity
Ray-finned fishes now comprise about 30,000 species throughout freshwater and ocean habitats all over the world Globally, 2,211 species of fish — including lampreys and hag fish, sharks, skates, rays and chimaeras, bony fishes and coelacanths — or 17 percent of described fish species are deemed at risk of extinction by IUCN's Red List, 233
- Chapter 56 Flashcards - Quizlet
Study with Quizlet and memorize flashcards containing terms like 1) Which of the following ecological locations has the greatest species diversity? A) tundra B) deciduous forests C) tropics D) grasslands E) islands, 2) What is the estimated number of extant species on Earth? A) 1,000 to 50,000 B) 50,000 to 150,000 C) 500,000 to 1,000,000 D) 10,000,000 to 100,000,000 E) 5 billion to 10 billion
- World’s reptiles comprehensively assessed – IUCN Red List
Over 10,000 reptile species have been assessed, revealing that 21% of all reptile species are at risk of extinction Habitat loss caused by expanding agriculture, deforestation and urban development are the greatest threats to reptiles worldwide, with South and Southeast Asia a centre of reptile diversity where these threats are prevalent
- Chameleons, facts and photos | National Geographic
There are more than 200 species of chameleons, 76 of which are only found on the island of Madagascar Their diet consists of insects and plants , although some may eat rodents or small birds
- Tetrapod - The Japan Times
Galen S , Tokyo Dear Galen, Let's start with the first part of your question Those crazy jack-like structures are called tetrapods, from the Greek meaning "four-legged "
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