Test yourself by clicking on the 7B1 Reproduction link above (with many
thanks to members of Form 7E, May 2005)
In this unit we take a brief look at how animals reproduce (see the pictures
below!) before concentrating on human reproduction.
Obviously this topic is of vital importance to every single person!
In the news: Infertility
'time bomb' warning: June 2005
Ladybirds Mating and Feeding
0574
From Frogspawn to Frogs!
0361
0362
Frogspawn in a garden pond: Day 1 17th March 2005
0363
0364
Frogspawn in garden pond: Days 3 & 4 19th March 2005
0365
Day 5 21st March 2005
0366
0367 Day 10 26th March 2005
0368
Day 11 27th March 2005 (1/4 second exposure
hand-held!)
0369
0370 Day 12 28th March 2005
0371 Tadpole shapes emerging: Day 13 29th March 2005
0372 Tadpoles bunching together: Day 15 31st March 2005
0373 Still bunching together, and more mobile: Day 16 1st
April 2005
0374 Gills visible: Day 17 2nd April 2005
0378
0379 Tadpoles from frogspawn brought indoors: Day 29 14th
April 2005
0380
0381 See those lips! Day 29 14th April 2005
Hamsters:
Hamsters mating: Whizza mating with Rosie. Gestation period is only 16
days - the shortest of any mammal! Hamsters normally only live for a
couple of years. Sadly Rosie died at a good age on 19th June 2005, 14
months after this photo was taken.
These 11 baby hamsters were born just 16 days after conception, a staggering
rate of development from sperm and egg to complex, albeit helpless, living
creature in less than two weeks
Baby hamster at 12 days old - eyes still not open. Just 28 days since
conception