Dear Members of the Zoological Society of Japan

Three papers scheduled for publication in Volume 42, Issue 5 have been released early.

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Vol. 42, No. 5

ORIGINAL ARTICLES: DEVELOPMENTAL BIOLOGY

Early Gonadal Differentiation in the Viviparous Red Stingray: Histological Characterization of Sexual Dimorphism
Yasuhisa Kobayashi, Naoaki Tsutsui, Tatsuya Sakamoto
Zoological Science 42 (5), (6 August 2025) https://doi.org/10.2108/zs250013
sexual differentiation, chondrichthyan, viviparity, gonadal development, reproductive duct, Muellerian duct, Wolffian duct, Hemitrygon akajei, Stingray

ORIGINAL ARTICLES: PHYSIOLOGY

Ascidian Larvae Prefer Hydrophobic Substrates for Settlement
Noboru Sensui, Euichi Hirose
Zoological Science 42 (5), (6 August 2025) https://doi.org/10.2108/zs250022 Open Access
KEYWORDS: ascidian larva, biofouling, four-choice assay, invasive species, settlement, silicone paradox, water wettability

ORIGINAL ARTICLES: BEHAVIORAL BIOLOGY

Defensive and Offensive Behavioral Interactions between Shelter-Building Caterpillars and Hunting Wasps
Misaki Tsujii, Shinji Sugiura
Zoological Science 42 (5), (6 August 2025) https://doi.org/10.2108/zs250027
anti-predator defences, Crambidae, Eumeninae, hunting behaviour, leaf shelters, mason wasps

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