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Modern amphibians have a simplified anatomy compared to their ancestors due to paedomorphosis, caused by two evolutionary trends: miniaturization and an unusually large genome, which result in a slower growth and development rate compared to other vertebrates.
In the Solow-Swan model, economic growth is driven by the accumulation of physical capital until this optimum level of capital per worker, which is the "steady state" is reached, where output, consumption and capital are constant. The model predicts more rapid growth when the level of physical capital per capita is low, something often referred ...
The mountain chicken frog, so-called as it tastes of chicken, is now endangered, in part due to human consumption, and was a major food choice of the Dominicans. [220] Raccoon, opossum, partridges, prairie chicken, and frogs were among the fare Mark Twain recorded as part of American cuisine. [221]
Many of the causes of amphibian declines are well understood, and appear to affect other groups of organisms as well as amphibians. These causes include habitat modification and fragmentation, introduced predators or competitors, introduced species, pollution, pesticide use, or over-harvesting. However, many amphibian declines or extinctions ...
Human capital or human assets is a concept used by economists to designate personal attributes considered useful in the production process. It encompasses employee knowledge, skills, know-how, good health, and education. [1] Human capital has a substantial impact on individual earnings. [2]
A 2013 study estimated that 670–933 amphibian species (11–15%) are both highly vulnerable to climate change while already being on the IUCN Red List of threatened species. A further 698–1,807 (11–29%) amphibian species are not currently threatened, but could become threatened in the future due to their high vulnerability to climate ...
WASHINGTON (Reuters) - There definitely were no muppets during the Permian Period, but there was a Kermit - or at least a forerunner of modern amphibians that has been named after the celebrity frog.
Natural capitalism recognizes the critical interdependency between the production and use of human-made capital and the maintenance and supply of natural capital. [3] The authors argue that only through recognizing this essential relationship with the Earth's valuable resources can businesses, and the people they support, continue to exist.