Repeated conservation threats across the Americas: High levels of blood and bone lead in the Andean Condor widen the problem to a continental scale.

Wildlife lead exposure is an increasing conservation threat that is being widely investigated. However, for some areas of the world (e.g.

Effect of thawing procedure on cryosurvival of deer spermatozoa: work in progress.

The objective of this study was to evaluate the effect of the thawing procedure on deer semen freezability. Frozen semen from the Genetic Resource Bank (GRB) of the Zoological Park of Buenos Aires (Argentina) was used. Seven mature stags (two red deer, two Père David's deer and three fallow deer) were used as semen donors.