'Atavism', ushahidi wa udugu wa damu baina ya binadamu, nyoka na nyani

[FRANCIS DA DON]

'Atavists' ni viungo vilivyorudi kwa bahati mbaya kwenye viumbe ambavyo viungo husika vilishaondoka na kupotea, ila zile 'switch' za kiungo husika zinakuwa tu zimezimwa kwenye vinasaba vya kiumbe, na 'switch' hizo zinapowashwa tena kwa bahati mbaya, basi kiungo hicho hurudi.
Mfano nyoka mwenye miguu, nyangumi mwenye miguu, binadamu mwenye mkia, kuku mwenye meno, ni ishara ya udugu wa damu baina ya viumbe kama bnadamu,nyoka na nyani, hivyo mababu na mabibi wa nyoka na manyani ni hao hao wa binadamu.
Update: 24/11/2020

_________________________________

 

[smarte_r]

hata sijakuelewa kitu.

 

[FRANCIS DA DON]

That's right, a whale with legs. ... Our mammal friend the whale gives us the perfect example of an atavism, a trait from a distant evolutionary ancestor that has reappeared in a modern-day organism. Millions and millions of years ago, the ancestors of whaleswalked on land.

 

[FRANCIS DA DON]

Chicken teeth

The left beak belongs to a healthy chicken, while the one on the right bears the recessive talpid2 gene and tiny tooth-like projections.
In 2006, scientists researching the effects of a recessive talpid2 gene in chicks discovered small protrusions that revealed the genetic ability to grow teeth in birds. Though many evolutionary scientists cite this study as a momentous victory for the theory of evolution

 

[Smart911]

Hizo huitwa bahati mbaya...


Cc: mahondaw

 

[FRANCIS DA DON]

 

[FRANCIS DA DON]

'Vestiges' kwenye miili ya wanyama, ushahidi tosha kwamba hatukuumbwa, bali tuli-'evolve' kuwa tulivyo

Vestiges ni viungo katika miili ya wanyama ambavyo vinaweza visiwe na kazi katika baadhi ya wanyama lakini vinakuwa na muhimu na ni vya lazima katika miili ya wanyama wengine. Mfano 'tail bone' / mfupa wa mkia hauna umuhimu wowote katika mwili wa binadamu maana hatuna mikia sisi, lakini tunao...

www.jamiiforums.com