Following a letter of transmittal between the Department of the Interior and the President of the Senate, this document presents General Agent of Education in Alaska, Sheldon Jackson's seventh annual report on "The introduction of domestic reindeer into Alaska." In his report, Jackson notes satisfactory progress with an advance made…

Herein, it is stated that the Secretary of the Interior is directed to transmit to the Senate the report of Dr. Sheldon Jackson upon "The introduction of domestic reindeer in the district of Alaska" for 1905, with maps and illustrations. Following a letter of transmittal from the Secretary of Interior to the President of the Senate, this…

Describes the natural habitat, life-history, and behavior of gerbils. These animals do not drink water, are virtually odorless, can withstand wide temperature ranges, and require minimal attention. As a result they have become popular in research and science classrooms in recent years. (JR)

Speculates why animals have not developed wheels in place of inefficient legs. One study cited suggests three reasons why animals are better off without wheels: wheels are efficient only on hard surfaces, limitation of wheeled motion due to vertical obstructions, and the problem of turning in spaces cluttered with obstacles. (JN)

Reviews the pros and cons of using animals or alternatives in scientific research. Such alternatives (as indicated in congressional bill HR 556) include mathematical models, isolated organs, tissue and cell cultures, computer simulations, mechanical models, and "lower" organisms among others. (SK)

Discusses immunological methods used to demonstrate or verify relationships between species of animals. (HM)

Accidentally killed animals provide biology classes with excellent study material. (Editor)

The design of a post-mortem room complex to serve the needs of three separate organizations on the campus of the University of Bristol's Veterinary Field Station is described. Comments are made on disadvantages that have become apparent during eight years of use. (Author/LBH)

Discusses the benefits of a classroom pet. Presents guidelines to determine whether a classroom pet is really needed and some suggestions for improving existing conditions for animals you may already have. Includes chart for choosing the right pet, which compares the life span, size, diet, and pros and cons for guinea pigs, hamsters, rabbits,…

Describes a field trip to collect planarians as successful in generating interest in the sciences. This activity is suitable for all grade levels as a field trip or biology lab. Planarians can be easily collected from streams across the United States. Once in the classroom, planaria are easily fed and cared for. (SAH)

Pigeons were exposed to multiple and concurrent second-order schedules of token reinforcement, with stimulus lights serving as token reinforcers. Tokens were produced and exchanged for food according to various fixed-ratio schedules, yielding equal and unequal unit prices (responses per unit food delivery). On one schedule (termed the "standard…

In contemporary science education, the trend is to engage students in hands-on activities in which they must manipulate equipment and gather data in an effort to answer questions. Hands-on experiences may turn out to be meaningless unless the experiences are well designed, planned, and focused so that students are guided to construct accurate…

In earlier work we have shown that adults, infants, and cotton-top tamarin monkeys are capable of computing the probability with which syllables occur in particular orders in rapidly presented streams of human speech, and of using these probabilities to group adjacent syllables into word-like units. We have also investigated adults' learning of…

The relation between the rate of a response ("B") and the rate of its reinforcement ("R") is well known to be approximately hyperbolic: B = kR/(R + R[subscript o]), where k represents the maximum response rate, and R[subscript o] indicates the rate of reinforcers that will engender a response rate equal to half its maximum value. A review of data…

Two experiments explored the behavior of 20 Asian elephants ("Elephas aximus") in simultaneous visual discrimination tasks. In Experiment 1, 7 Burmese logging elephants acquired a white+/black- discrimination, reaching criterion in a mean of 2.6 sessions and 117 discrete trials, whereas 4 elephants acquired a black+/white- discrimination in 5.3…