Sperm whales were hunted for spermacetes, a substance found in their heads which was used to the production of perfumes, candles and ointments.

They are called killer whales due to the fact that feed largely on warm blooded prey. They hunt down whales occasionally, therefore the name "killer (of) whales".

A healthy adult killer whale is an apex (top) predator in the ocean; it can prey on anything that lives in the sea, but has no predators of its own. Some killer whales are even known to prey on other species of whales. At one time, people called them "whale killers," which was eventually modified into killer whales.

Orcas are highly efficient ocean predators--top of the food chain. Some cooperate when hunting, just like wolves. The fact that most killer whales feed on other marine mammals, including the large baleen whales, have earned them their common name. Pacific Northwest resident pods of killer whales, however, rely primarily upon the once-abundant salmon runs for food.

Humpback whales are most commonly seen in the lower region of Glacier Bay; Sitakaday Narrows, Whidbey Passage and the waters around South Marble Island. For kayakers Hugh Miller Inlet and the Beardslee Islands are good locations. Please remember all boats (including kayaks) are required to operate outside a 1/4 nautical mile of any humpback whale.

Seals are best seen from boat cruises that leave from town harbors, including the park's four ranger-narrated boat cruises. Whale-watching trips are offered out of Bar Harbor.

Sperm in the testes and duct system are normally isolated from the body’s immune system. When a vasectomy is performed, the sperm are exposed to the immune system, and the body responds as if the sperm were a foreign protein. The immune system produces substances called antibodies against the sperm.

If you live close to your clinic -- within 20-30 minutes drive -- you might be able to collect the sperm sample at home, otherwise the clinic will provide you with a room in which to collect it.

Sperm quality on the day of egg retrieval is often related to what happened in the male's body 3 months ago. This is because sperm development takes almost 3 months. A fever of 101 degrees Fahrenheit or higher within 3 months prior to ART treatment may adversely affect sperm quality. Sperm count and motility may appear normal, but fertilization may not occur.

Sperm is classified in terms of count, (how many millions of sperm there are per sample), and quality, including mobility. To promote better sperm production, encourage your partner to wear loose boxer shorts and trousers and take cool showers rather than hot baths. Excessive alcohol intake and smoking are also bad news for healthy sperm production so encourage your partner to cut down or quit altogether if possible.

Yes. We've actually had fishing boats returning with catches that were hit and damaged by whales. They're not all swimming around in aquariums entertaining children you know.

During the past 5 seasons that we have operated our tours, we have had only 1 day that we did not see the whales. This incredible success is largely due to the fact that we begin offering our tours at least a week after the whales have arrived in Loreto and in Baja.

We are traveling at about the best time for sightseeing. We'll see spectacular glaciers right from the boat, and there's a good chance we'll see them "calve" or split apart. Holland America will sail us directly into Glacier National Park accompanied by park rangers. We will also be sailing along and through some of the most spectacular coastal views in the world. Marine and other wildlife should be all over the place, and we'll have people on board to help you spot and identify everything.