I never thought I’d have a tray of walrus ovaries on my desk. Earlier this summer, I planned an interview to learn about a student project looking at zinc concentrations in walrus teeth. Things have ...

Most animals reach an adult size, then spend the rest of their lives maintaining it. After maturity, their energy goes toward reproduction, repair, and survival rather than added length or mass. Yet a ...

OVERTON - Fall-born Brahman bulls require more than a month longer to reach sexual maturity than Brahman bulls born in the spring, according to recent research by an internationally recognized ...

This is a preview. Log in through your library . Abstract The species (Platyhelminthes: Turbellaria; Tricladida) was originally described in the United States from Pennsylvania by Dr. Joseph Leidy, ...

The slow maturation of human children—often viewed as burdensome in modern parenting—is, in fact, a remarkable evolutionary achievement. Unlike other species, humans remain biologically immature and ...

Recent research conducted on the long-term issue of age distribution of red snapper in the Gulf of Mexico indicates that older fish, age eight and up are more reproductive than younger fish were over ...