Robert H.I. Dale

Birth Statistics for African ( Loxodonta africana ) and Asian ( Elephas maximus ) Elephants in Human Care: History and Implications for Elephant Welfare

African (Loxodonta africana) and Asian elephants (Elephas maximus) have lived in the care of humans for many years, yet there is no consensus concerning some basic parameters describing their newborn calves. This study provides a broad empirical basis for generalizations about the birth heights, birth weights, birth times and gestation periods of elephant calves born in captivity. I obtained data concerning at least one of these four characteristics for 218 newborn calves from 74 institutions. Over the past 30 years, newborn Asian elephants have been taller and heavier than newborn African elephants. Neonatal African elephants exhibited sex differences in both weight and height, whereas neonatal Asian elephants have exhibited sex differences only in height. Primiparous dams ex situ are at least as old as their in situ counterparts, whereas ex situ sires appear to be younger than sires in range countries. Confirming earlier anecdotal evidence, both African [N=47] and Asian [N=91] dams gave birth most often at night.

Effects of Lineup Modality on Witness Credibility

Abstract Three experiments were conducted to explore the credibility of earwitness versus eyewitness testimony among American college students. Experiment 1 demonstrated that subjects were less likely to identify the perpetrator of a simulated crime in auditory lineups than in visual or auditory-visual lineups. In Experiment 2, subjects observed a videotaped witness from Experiment 1 make an identification. Contrary to actual accuracy data, subjects were as believing of the identifications made by auditory witnesses as they were of the identifications made by visual or auditory-visual witnesses. In Experiment 3, mock jurors in a simulated robbery trial believed auditory lineup identifications as much as they did visual or auditory-visual lineup identifications.

A survey of the management and development of captive African elephant (Loxodonta africana) calves: birth to three months of age.

We used four surveys to collect information about the birth, physical growth, and behavioral development of 12 African elephant calves born in captivity. The management of the birth process and neonatal care involved a variety of standard procedures. All of the calves were born at night, between 7PM and 7AM. The calves showed a systematic progression in behavioral and physical development, attaining developmental milestones at least a quickly as calves in situ. This study emphasized birth-related events, changes in the ways that calves used their trunks, first instances of behaviors, and interactions of the calves with other, usually adult, elephants. Several behaviors, such as the dam covering her calf with hay and the calf sucking its own trunk, were common in the captive situation and have been observed in situ. Overall, the behaviors of the calves resembled those observed for African elephant calves in situ. These data should help in the management of African elephants under human care by providing systematic reference values for the birth and development of elephant calves.

Cognitive Ethology and the Cost of Anthropomorphiphobia

Griffin’s smooth writing style and his remarkable survey of the relevant literature and important concepts make his book, a revised version of his 1992 text, one of the most impressive ethological texts I have ever read. He states that “Cognitive ethology presents us with one of the supreme scientific challenges of our time, for it constitutes the final chapter of the Darwinian revolution, and it therefore calls for our best efforts of imaginative and critical investigation” (p. 285). Such words are appropriate from the individual most researchers consider JOURNAL OF APPLIED ANIMAL WELFARE SCIENCE, 5(2), 163–168 Copyright