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Prolonged milk provisioning in a jumping spider
Chen, Zhanqi; Corlett, Richard T.; Jiao, Xiaoguo1; Liu, Sheng-Jie; Charles-Dominique, Tristan; Zhang, Shichang1; Li, Huan; Lai, Ren3; Long, Chengbo3; Quan, Rui-Chang
Source PublicationSCIENCE

Lactation is a mammalian attribute, and the few known nonmammal examples have distinctly different modalities. We document here milk provisioning in a jumping spider, which compares functionally and behaviorally to lactation in mammals. The spiderlings ingest nutritious milk droplets secreted from the mother's epigastric furrow until the subadult stage. Milk is indispensable for offspring survival in the early stages and complements their foraging in later stages. Maternal care, as for some long-lived vertebrates, continues after the offspring reach maturity. Furthermore, a female-biased adult sex ratio is acquired only when the mother is present. These findings demonstrate that mammal-like milk provisioning and parental care for sexually mature offspring have also evolved in invertebrates, encouraging a reevaluation of their occurrence across the animal kingdom, especially in invertebrates.

KeywordParental Care Trophic-eggs Evolution Defense Size Food
Subject AreaScience & Technology - Other Topics
Indexed BySCI
WOS IDWOS:000451609000045
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Document Type期刊论文
Affiliation1.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Ctr Integrat Conservat, Kunming 666303, Yunnan, Peoples R China
2.Hubei Univ, Coll Life Sci, Ctr Behav Ecol & Evolut, Wuhan 430062, Hubei, Peoples R China
3.Chinese Acad Sci, Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Kunming 666303, Yunnan, Peoples R China
4.Chinese Acad Sci, Kunming Inst Zool, Kunming 650223, Yunnan, Peoples R China
Recommended Citation
GB/T 7714
Chen, Zhanqi,Corlett, Richard T.,Jiao, Xiaoguo,et al. Prolonged milk provisioning in a jumping spider[J]. SCIENCE,2018,362(6418):1052-+.
APA Chen, Zhanqi.,Corlett, Richard T..,Jiao, Xiaoguo.,Liu, Sheng-Jie.,Charles-Dominique, Tristan.,...&Quan, Rui-Chang.(2018).Prolonged milk provisioning in a jumping spider.SCIENCE,362(6418),1052-+.
MLA Chen, Zhanqi,et al."Prolonged milk provisioning in a jumping spider".SCIENCE 362.6418(2018):1052-+.
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