21.6 x 30.7 cm. (8.5 x 12.1 in.) ...

43.2 x 64.4 cm. (17 x 25.4 in.) ...

Sporting a mottled brown and buff plumage, this bird is perfectly camouflaged against the winter landscape. One of the owl’s distinctive characteristics is the presence of small ear tufts ...

Michael gets ahead of aphids in fruit trees “by applying a winter application of dormant oil spray.” The oil actually smothers the overwintering aphid eggs. The oil should be applied during ...

RNA (ribonucleic acid) is a nucleic acid polymer where the carbohydrate is ribose. RNA is generally single-stranded, as DNA is transcribed by RNA polymerases into mRNA (messenger RNA), which is ...

CRISPR-Cas systems are prokaryotic immune systems that confer resistance to foreign genetic elements such as plasmids and phages. CRISPR-Cas systems have been exploited for targeted genome editing ...