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Impacted Bones: Can Extant Primates Help Identify Tool Use in Early Hominins?
Evolutionary Anthropology: Issues, News, and Reviews, Volume 35, Issue 3, September 2026.ABSTRACT Despite recent advances pushing back the earliest record of tool use, how and when it first emerged in hominins, and the extent to which it featured amongst the numerous co‐existing species, remain critical questions in paleoanthropology. In addition to analyzing fossils and lithic toolkits, novel strides in understanding this might be made by
Rachel M. Hurwitz +3 more
wiley +1 more source
[Hormones of insect metamorphosis].
Postepy biochemii, 1970 M J, Piechowska +2 more
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Proceedings: Animal Sciences, 1985
Hormones play an important role in insect behaviour. These hormones are mainly the neurohormones of the brain and of the corpus cardiacum, the juvenile hormone of the corpus allatum and the ecdysone of the prothoracic glands. These produce either releaser effects or modifier effects.
Prabhu V K K
exaly +2 more sources
Hormones play an important role in insect behaviour. These hormones are mainly the neurohormones of the brain and of the corpus cardiacum, the juvenile hormone of the corpus allatum and the ecdysone of the prothoracic glands. These produce either releaser effects or modifier effects.
Prabhu V K K
exaly +2 more sources
Peptides, 1985
Peptides with adipokinetic (and usually carbohydrate-mobilizing) potency have been demonstrated in various insects, including Locusta migratoria, Schistocerca gregaria, Manduca sexta, Danaus plexippus and Periplaneta americana. As far as characterized by now the adipokinetic factors are blocked peptides, consisting of eight to ten amino acid residues ...
A M, Beenakkers +4 more
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Peptides with adipokinetic (and usually carbohydrate-mobilizing) potency have been demonstrated in various insects, including Locusta migratoria, Schistocerca gregaria, Manduca sexta, Danaus plexippus and Periplaneta americana. As far as characterized by now the adipokinetic factors are blocked peptides, consisting of eight to ten amino acid residues ...
A M, Beenakkers +4 more
openaire +2 more sources
Hormonal Activation of the Insect Brain
Science, 1964A new endocrine function has been shown to play a role in insect morphogenesis. The hormone named proctodone is secreted by specialized cells of the hindgut and appears to affect the brain, resulting in the activation of the brain hormone-producing system.
S D, BECK, N, ALEXANDER
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Hormones Controlling Insect Metamorphosis
1980Publisher Summary This chapter focuses on the control of postembryonic growth and metamorphosis. It highlights the chemistry, biochemistry, and regulation of prothoracicotropic hormone (PTTH), juvenile hormone, and molting hormone (20-hydroxyecdysone, ecdysterone) in the tobacco hornworm, Manduca sexta, and deals only in a cursory manner with hormone
L I, Gilbert +6 more
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Crystallization of the ‘Brain’ Hormone of an Insect
Nature, 1962THE extraction of the ‘brain’ hormone from the dissected pupal ‘brain’ in the silkworm, Bombyx mori, was carried out by Kobayashi and Kirimura1. Since then about 500,000 ‘brains’ dissected out free of corpora cardiaca and corpora allata of pupae have been used as material in the purification of the hormone.
M, KOBAYASHI, J, KIRIMURA, M, SAITO
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