Lightning-Season Burning: Friend or Foe of Breeding Birds?

Kant: Friend or Foe of the Believer? Plantinga and Other American Christian Responses to Kant's Epistemology

Apocrine Metaplasia in Intraductal Papilloma with Foci of DCIS: A Friend or Foe?

Malignant papillary neoplasms of the breast comprise a number of microscopically distinct lesions, where apocrine metaplasia is commonly found in papillomas compared to other papillary lesions including papillary carcinomas. However, association of apocrine metaplasia in papilloma with Ductal Carcinoma in Situ (DCIS) is not very well defined. The lesions with apocrine metaplasia are not only di...

Testosterone in tropical birds: effects of environmental and social factors.

Previous investigations suggest that male tropical birds have lower plasma testosterone concentrations than northern latitude species. To test whether this generalization is valid, we analyzed all currently available plasma testosterone data of tropical birds. We focused on peak breeding testosterone levels using phylogenetic and conventional statistics. Explanatory variables considered were so...

Anticancer Drug — Friend or Foe

Interspecic reciprocity explains mobbing behaviour of the breeding chafnches, Fringilla coelebs

When prey animals discover a predator close by, they mob it while uttering characteristic sounds that attract other prey individuals to the vicinity. Mobbing causes a predator to vacate its immediate foraging area, which gives an opportunity for prey individuals to continue their interrupted daily activity. Besides the increased beneŽ ts, mobbing behaviour also has its costs owing to injuries o...