Swallows

... difficult thing with the endosymbiotic theory is that it proposes no real mechanism and most textbooks show the simplistic picture of a cell that swallows another cell that becomes a mitochondrion. Unfortunately, it is not so simple as that. There is a difference between the process of endosymbiosis ...

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1) Does a shore-crab normally irrigate its branchial chamber by exhaling or inhaling at the front edge of the carapace ? 2)When the crab swallows water , does it pump air in the same direction or opposite direction? 3) Why does dissolveed oxygen appears to increase during the crab winker experiment? ...

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... Imagine a cow, which is warm blooded, having a calf, and then suckling it underwater! The moment the new-born calf opens it's mouth, it swallows a huge mouthful of seawater. How long do you think it will survive? Zero. So what happens? Well, get this: the mother whale has a SPECIALLY ...

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... a moment. Imagine a cow, which is warm blooded, having a calf, and then suckling it underwater! The moment the new-born calf opens it's mouth, it swallows a huge mouthful of seawater. How long do you think it will survive? Zero. So what happens? Well, get this: the mother whale has a SPECIALLY ...

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... beginning with the processes required for life (such as eating in animals) and moving upwards to things like the annual arrival of the cliff swallows on March 18th (apart from leap years) and their departure on Oct 23. Their journey is about 7,500 miles from Goya in Argentina to Capistrano ...

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