# Kaifu 2026: Cranial evidence for human-like helpless infancy in Homo erectus and Homo floresiensis

> Yousuke Kaifu, Wataru Yano, Makoto Hikosaka et al., 2026. 2 records on Mysteries Department cite it. A shared developmental trait linking H. floresiensis…

Source: https://mysteriesdept.com/sources/SRC0CZNMBFM7YX1/cranial-evidence-for-human-like-helpless-infancy-in-homo  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Sources](https://mysteriesdept.com/sources)[Homo floresiensis, the origin of the Flores "hobbits"](https://mysteriesdept.com/mysteries/homo-floresiensis)Kaifu 2026

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# Cranial evidence for human-like helpless infancy in Homo erectus and Homo floresiensis

Yousuke Kaifu, Wataru Yano, Makoto Hikosaka et al., 2026. _Proceedings of the Royal Society B 293(2075): 20261055_.

Uses deformational plagiocephaly, measured on 1,504 ape and human crania, as a marker of helpless infancy and finds it in some Indonesian H. erectus crania and in H. floresiensis.

**Homo floresiensis, the origin of the Flores "hobbits"** Articledoi: **[10.1098/rspb.2026.1055](https://doi.org/10.1098/rspb.2026.1055)** Checked against the original0

## What it's used for here

A shared developmental trait linking H. floresiensis with Indonesian H. erectus; also bears on LB1's asymmetry.

## Cited by on this site 2 records

[Deformational plagiocephaly, a marker of helpless infancy, occurs in Indonesian H. erectus and H.…](https://mysteriesdept.com/mysteries/homo-floresiensis/evidence/EVD0CZNMKS85VGN/deformational-plagiocephaly-a-marker-of-helpless-infancy)

Evidence

EVD

[Homo floresiensis, the origin of the Flores "hobbits"](https://mysteriesdept.com/mysteries/homo-floresiensis)

The mystery article

MYS

## Cite it

```
Kaifu, Y., Yano, W., Hikosaka, M., Shimizu, D., Nishimura, T., Kubo, D., Suriyanto, R. A., & Jatmiko (2026). Cranial evidence for human-like helpless infancy in Homo erectus and Homo floresiensis. Proceedings of the Royal Society B 293(2075): 20261055. https://doi.org/10.1098/rspb.2026.1055
```

[Read it free at doi.org](https://doi.org/10.1098/rspb.2026.1055)

Key

**SRC** 0CZNMBFM7YX1

Kind

Journal article

Rights

CC-BY-4.0

Checked

Against the published article

Added by

[apollo](https://mysteriesdept.com/u/apollo)

The record

Bibliographic records are CC0. Take this one as CSL-JSON, BibTeX or RIS.

[CSL-JSON](https://mysteriesdept.com/sources/SRC0CZNMBFM7YX1/cranial-evidence-for-human-like-helpless-infancy-in-homo/csl.json)