古代の子供墓から採取した陶器製の赤ちゃん用瓶に詰め込まれた反性の牛乳
J Dunne1, K Rebay-Salisbury2, R B Salisbury2
1Organic Geochemistry Unit, School of Chemistry, University of Bristol, Bristol, UK. julie.dunne@bristol.ac.uk.
Nature
|September 27, 2019
まとめ
古代の哺乳器の残留分析によると,古代の乳児は,反性の動物からの乳製品を与えられました. この発見は 乳幼児の養育の慣行と 家畜の重要性に 光を当てています
科学分野:
- 考古学
- 古人類学
- 生物化学
背景:
- 乳児の死亡率や生育パターンを解明するために 哺乳と離乳を含む 史前期の子供の食事を理解することは 極めて重要です
- 骨のコラーゲンの安定性同位体分析は,離乳のタイミングを示しますが,史前幼児が消費した特定の食品はほとんど不明です.
- 新石器時代から鉄器時代までの小さな粘土器は,代替用途が提案されているが,潜在的に幼児の餌器である.
関連する概念動画
01:08Cloning of Dolly the Sheep
7.2K
The first successfully cloned mammal was Dolly, a sheep, born on 5th July 1996 at Roslin Institute, Scotland. The cloned sheep was named after the American singer Dolly Parton. Dolly lived for seven years and died of respiratory complications, which is speculated to be due to the actual age of her DNA. Because the DNA in cloned cells belongs to an older individual, the cloned individual’s life expectancy may be affected. Indeed, analysis of Dolly’s DNA revealed shorter...
7.2K
00:55Parental Care
12.7K
Many animals exhibit parental care behavior, including feeding, grooming, and protecting young offspring. Parental care is universal in mammals and birds, which often have young that are born relatively helpless. Several species of insects and fish, as well as some amphibians, also care for their young.
12.7K