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That' s right. This is around 700, 000 years. Present day is back there. Chris and his team have collected evidence of human occupation from sites right across Britain. This is a leg bone about 500, 000 years ago. 400, 000 years ago we' ve got one human fossil from that period from Swanscom be in Kent. We know the Neanderthals were back here in Britain about 60, 000 years ago. That brings us nicely up to the present day with a modern human, so there we are. But the periods without any people at all coincide with something rather chilling ice Ages. So when were those ice ages that you were talking about? There' s a whole series of them. Here, about 13, 000 years ago, you' ve got the peak of the last ice age. Then we' ve got a major cold stage here, another one here. So I can count seven major ice ages over the 700, 000 years? Yep, and at least seven extinction events of the people. It' s only us that are the last survivors. All the rest of these species, of course, died out, and they died out successively in Britain and Britain had to be repopulated about every 100, 000 years. |
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zhè dà yuē shì qī shí wàn nián qián, dāng jīn shì jiè zài nà li, kè lǐ sī hé tā de tuán duì biàn lì yīng guó gè dì yí zhǐ, shōu jí rén lèi shēng cún hén jī. zhè shì gēn wǔ shí wàn nián qián de tuǐ gǔ, wǒ men zài kěn tè jùn de sī wàng sī kǒng, fā xiàn le sì shí wàn nián qián de rén lèi huà shí. wǒ men zhī dào ní ān dé tǎ rén shēng huó zài liù shí wàn nián qián de yīng guó, jiē xià lái jiù shì shēng huó zài dāng jīn de xiàn dài rén, suǒ yǐ wǒ men zài zhè wán quán méi yǒu rén lèi jī xiàng de shí dài, yǔ yí gè hán lěng de shí qī àn hé, bīng hé shí dài. nǐ suǒ shuō de bīng hé shí dài shì zài shén me shí hòu? nà shi gè hěn zhǎng de shí jiān duàn, zhè lǐ yī wàn sān qiān nián qián, zuì hòu yí gè bīng hé shí dài dá dào dǐng fēng, zhè yǒu yí gè zhǔ yào hán lěng qī, lìng yí gè zài zhè. guò qù qī shí wàn nián, yǒu qī dà duàn bīng hé shí qī shì de, rén lèi zhì shǎo xiāo wáng le qī cì, wǒ men shì zuì hòu yī pī xìng cún zhě. xiǎn rán qí tā shí qī de rén lèi dōu yǐ miè jué, tā men xiāng jì zài yīng guó xiāo shī le, yīng guó měi shí wàn nián jiù yào jīng lì yī cì rén lèi huàn dài. |