An exhibition of black-and-white images of the Hadza children of Tanzania will open Saturday, May 18, at the Utah Museum of Natural History. "Children of the Baobab - Growing up Hadza" consists of about 45 photographs taken by University of Utah professor James O'Connell while working among the Hadza.

For six years, O'Connell and other members of a research team studied the human ecology of the Hazdas, documenting material costs of raising children, food sharing, child care and other economic choices that relate to children and the group as a whole.O'Connell was surprised to discover that Hadza children are highly independent. By the time they are 5 years old, they've learned to provide about 50 percent of their daily food.

Adding interest to the exhibit will be a text describing Hadza childhood. Toys, musical instruments and other objects will also be displayed.

The exhibit will remain through Sept. 2 at UMNH on the U. campus. A reception is set for Friday, May 17, from 6-8 p.m. Admission to the exhibit is free during reception hours. Museum admission is $2 for adults and $1 for children. However, no admission will be charged on Saturday, May 18, in recognition of International Museum Day.

Hours are 9:30 a.m. to 5:30 p.m. Monday through Saturday and noon to 5 p.m. on Sundays and holidays (closed July 4).

Three gallery talks have been scheduled at 3 p.m. on the following Sundays:

- May 19 - Nicholas Blurton Jones will discuss Hadza child-rearing practices. He teaches in the departments of education, anthropology and psychiatry at UCLA.

- July 21 - Dristen Hawkes will discuss the role of grandmothers in rearing Hadza children. She has taught in the anthropology department at the U. since 1973.

- Aug. 18 - James O'Connell, guest curator of the exhibit, will explore the economics of Hadza hunting practices.

The exhibit is supported by a grant from the J.J. and Jessie Quinney and the Ray, Quinney and Nebeker foundations. For details, call 581-4303.