Melbourne picture, volume 1 page 230
Y chromosome (biology)
gender determination picture, volume 5
page 93
genetics volume 5 page 93
year
calendar volume 3 page 9
time volume 13 page 67
yeast (fungus)
fermentation volume 5 page 11
rising dough picture, volume 4 page 144
Yehudi (people): see in index Jewish
people
yellow (color)
light picture, volume 3 page 155
pigment picture, volume 3 page 156
yellow anaconda (reptile)
anacondas volume 1 page 113
BRITANNICA STUDENT ENCYCLOPEDIA yellow anaconda 289
yellow-bellied sea snake (reptile)
sea snake volume 12 page 60
various snakes picture, volume 12
page 113
yellow-headed blackbird (bird)
blackbirds volume 2 page 84
yellow jacket (insect)
wasp volume 15 page 21
yellow mongoose (mammal) picture,
volume 8 page 165
yellow mustard (plant and condiment):
see in index white mustard
yellow pitcher plant (plant)
pitcher plant volume 10 page 90
Yellow River (river in China): see in index
Huang He
yellowspot emperor fish picture, volume
5 page 27
Yellowstone National Park (national
park in the U.S.)
national parks volume 9 page 15
wapiti picture, volume 15 page 7
Yeltsin, Boris (president of Russia)
MAIN ARTICLE volume 15 page 89, picture,
volume 15 page 89
Yemen (country in the Middle East)
MAIN ARTICLE volume 15 page 90, picture,
volume 15 page 90
MORE TO EXPLORE
Middle East volume 8 page 124
Sanaa picture, volume 12 page 26
Yemen Arab Republic (historical country
in the Middle East)
Yemen volume 15 page 91
yerba mate (beverage): see in index mate
Yerevan (capital city of Armenia)
MAIN ARTICLE volume 15 page 92, picture,
volume 15 page 92
MORE TO EXPLORE
Armenia volume 1 page 184
monument picture, volume 1 page 185
yeshiva (Judaism)
young men studying the Talmud picture,
volume 13 page 14
Yeti (mythology): see in index Abominable
Snowman
yew (tree and shrub)
MAIN ARTICLE volume 15 page 92, picture,
volume 15 page 93
Yi dynasty (Korean history): see in index
Choson dynasty
Yoemem (Native American people): see in
index Yaqui
Yoga (philosophy and exercise)
MAIN ARTICLE volume 15 page 93, picture,
volume 15 page 93
yolk (animal reproduction)
egg volume 4 page 108
Yom Kippur (Judaism)
MAIN ARTICLE volume 15 page 94, picture,
volume 15 page 94
MORE TO EXPLORE
Rosh Hashana volume 11 page 98
Yom KippurWar (Middle East, 1973)
Arab-Israeli wars volume 1 page 158
York (historical town in Ontario,
Canada): see in index Toronto
Yorktown (historic town in Virginia,
U.S.)
American Revolution volume 1
page 102
Yoruba (people)
Nigeria volume 9 page 68
Yosemite Falls (waterfalls in California,
U.S.) picture, volume 14 page 24
Yosemite National Park (national park
in California, U.S.)
Yosemite Falls picture, volume 14
page 24
Young, Brigham (U.S. religious leader)
picture, volume 8 page 181
Mormons volume 8 page 182
“You’re a Good Man, Charlie Brown”
(stage musical)
Schulz volume 12 page 48
Yuan Dynasty (Chinese history)
Mongol Empire volume 8 page 162
Mongolia volume 8 page 164
Polo volume 10 page 119
Yucatan Peninsula (peninsula in Mexico)
MAIN ARTICLE volume 15 page 94
Yugoslavia (historic country in Europe,
1929-2003)
MAIN ARTICLE volume 15 page 95
MORE TO EXPLORE
Balkan Peninsula volume 2 page 13
Bosnia and Herzegovina volume 2
page 113, volume 12 page 37
Croatia volume 3 page 219
Macedonia volume 8 page 5
Montenegro volume 8 page 175
Serbia volume 12 page 72
Slovenia volume 12 page 110
Yukon (territory in Canada)
MAIN ARTICLE volume 15 page 97
MORE TO EXPLORE
geography
Dawson picture, volume 15 page 98
wilderness picture, volume 15 page 98
gold rush volume 5 page 123
Yukon River (river in North America)
MAIN ARTICLE volume 15 page 96, picture,
volume 15 page 96
MORE TO EXPLORE
Dawson picture, volume 15 page 98
Yukon Territory (territory in Canada):
see in index Yukon
yurt (shelter) picture, volume 8 page 164
Yushchenko, Viktor (president of
Ukraine)
Ukraine volume 14 page 7
Zadar (city in Croatia)
Crusades volume 3 page 224
Zagreb (capital city of Croatia)
MAIN ARTICLE volume 15 page 100, picture,
volume 15 page 100
MORE TO EXPLORE
Croatia volume 3 page 218
Zaharias, Babe Didrikson (U.S. athlete)
MAIN ARTICLE volume 15 page 100
Zaire, Republic of (country in Africa):
see in index Congo, Democratic Republic
of the
290 yellow-bellied sea snake BRITANNICA STUDENT ENCYCLOPEDIA
Zambezi River (river in Africa) picture,
volume 15 page 101
Mozambique volume 8 page 200
Zambia (country in Africa)
MAIN ARTICLE volume 15 page 101, picture,
volume 15 page 101
Zanzibar (island in Tanzania)
Tanzania volume 13 page 15
Zapata, Emiliano (Mexican revolutionary)
MAIN ARTICLE volume 15 page 102, picture,
volume 15 page 102
MORE TO EXPLORE
Mexico volume 8 page 112
Villa volume 14 page 91
“Zapatistas” (painting by Orozco) picture,
volume 10 page 11
Zapotec (people)
MAIN ARTICLE volume 15 page 103
Zara (city in Croatia): see in index Zadar
Zarathustra (Iranian religious leader): see
in index Zoroaster
Zeami (Japanese playwright)
drama volume 4 page 73
zebra (mammal)
MAIN ARTICLE volume 15 page 102, picture,
volume 15 page 103
MORE TO EXPLORE
migration in Kenya picture, volume 8
page 125
Ngorongoro Crater in Tanzania picture,
volume 13 page 15
Zebu (breed of cattle): see in index Brahman